10 Best Angle Grinders Under $100 (October 2026)

The best angle grinders under 100 dollars in 2026 are the BLACK+DECKER BDEG400 for most people, the Metabo HPT G12SR4 if you want the lightest body on the list, and the AVID POWER 7.5-Amp kit if you want the most discs in the box. All ten picks below sit at or under that ceiling, and every spec comes from the manufacturer’s own listing and thousands of owner reviews.

Angle grinders get dismissed as a cheap tool you buy once and lose in a garage. That framing ignores how much of a difference sits between the entry-level end of this price range and the top of it. The cheapest grinder here turns a 6-amp motor at 10,000 RPM with a plastic gear case, while the best-selling pick runs 800 watts through a metal gear case with a spindle lock and a three-position side handle.

That gap is small in dollars and large in frustration. A grinder that overheats during a weld cleanup, has a guard you cannot adjust, or ships with a spindle nut that needs two wrenches will cost you more in wasted discs and ruined work than the difference between the cheapest and dearest tool on this list. We compared ten models across 20,000-plus owner reviews, weighed the spec sheets against the complaints, and flagged exactly who should skip each one.

We also drew on what tradespeople actually say in owner forums. The split there is real and worth naming: some insist you stay away from the cheapest grinders and buy Bosch, DeWalt, Makita or Metabo, while others argue that angle grinders are simple enough that budget tools are fine for most people. Both camps are right depending on what you are doing, so this guide sorts the ten picks by job intensity rather than pretending one answer fits everyone.

ContentsTable of Contents

1. 1Top 3 Angle Grinder Picks for 2026→
2. 2BLACK+DECKER BDEG400→
3. 3Metabo HPT G12SR4→
4. 4AVID POWER 7.5-Amp→
5. 5Best Angle Grinders at a Glance→
6. 61. BLACK+DECKER BDEG400 – Best Overall Corded Grinder for Most People→
7. 7BLACK+DECKER Angle Grinder Tool, 4-1/2-Inch, 6.5-Amp (BDEG400)→
8. 8Pros→
9. 9Cons→
10. 10What the BDEG400 handles well→
11. 11Who should skip the BDEG400→
12. 122. AVID POWER 7.5-Amp – Best Budget Grinder With the Biggest Accessory Bundle→
13. 13AVID POWER Angle Grinder, 7.5-Amp 4-1/2 inch Electric Grinder Power Tools with Grinding Wheels, Cutting Wheels and Auxiliary Handle for Cutting, Grinding, Polishing and Rust Removal – Red→
14. 14Pros→
15. 15Cons→
16. 16When the AVID POWER kit earns its place→
17. 17Where it falls short→
18. 183. Metabo HPT G12SR4 – Best Value Grinder for Fatigue and Tight Spaces→
19. 19Metabo HPT 4-1/2-Inch Angle Grinder, Includes 5 Grinding Wheels & Hard Case, 6.2-Amp Motor, Compact & Lightweight, G12SR4→
20. 20Pros→
21. 21Cons→
22. 22Why the weight matters more than the amps→
23. 23Who should skip the G12SR4→
24. 244. Ryobi R18AG-0 ONE+ – Best Cordless Grinder for Existing ONE+ Owners→
25. 25Ryobi 5133001903 R18AG-0 One+ Cordless Angle Grinder Angled→
26. 26Pros→
27. 27Cons→
28. 28What cordless changes about your workflow→
29. 29Who should skip the R18AG-0→
30. 305. CRAFTSMAN CMCG400B – Best Cordless Grinder for Warranty Cover and Heat Handling→
31. 31CRAFTSMAN V20* Angle Grinder, Small, 4-1/2-Inch, Tool Only (CMCG400B)→
32. 32Pros→
33. 33Cons→
34. 34Where the cast housing earns its keep→
35. 35What it costs you to own→
36. 366. DEWALT DWE4011 – Best Corded Grinder for Tool-Free Guard Adjustment→
37. 37DEWALT Angle Grinder, One-Touch Guard, 4-1/2 -Inch (DWE4011)→
38. 38Pros→
39. 39Cons→
40. 40What the guard system actually solves→
41. 41Where owners are less happy→
42. 427. Bosch GWS8-45 – Best Grinder for Maintenance Awareness and Long Grinding Sessions→
43. 43Bosch GWS8-45 4-1/2 In. Angle Grinder→
44. 44Pros→
45. 45Cons→
46. 46Why the brush system matters over time→
47. 47Where the GWS8-45 frustrates owners→
48. 488. SKIL 9295-01 – Best Low-Cost Grinder for Light Household Work→
49. 49SKIL 6 Amp 4-1/2-Inch Corded Angle Grinder – 9295-01→
50. 50Pros→
51. 51Cons→
52. 52The case for spending your money elsewhere→
53. 53Jobs it suits well→
54. 549. SHALL 7.5-Amp Kit – Best Budget Grinder for Two Guards and a Full Disc Set→
55. 557.5Amp 4-1/2 Inch 12000 RPM Angle Grinder with 2 Guards, 3 Cutting Wheels, 3 Discs, Non-Slip Handle and Carbon Brush for Metal and Wood→
56. 56Pros→
57. 57Cons→
58. 58What you get for the money→
59. 59Where it falls behind→
60. 6010. Makita 9557PB – Best Grinder for Paddle Switch Safety and Weld Finishing→
61. 61Makita 9557PB 4-1/2″ Paddle Switch Angle Grinder, with AC/DC Switch→
62. 62Pros→
63. 63Cons→
64. 64Where the small barrel earns its name→
65. 65Where it will not suit you→
66. 66How to Choose an Angle Grinder Under 100 Dollars→
67. 67Match amperage to the job→
68. 68Decide between 4.5 inch and 6 inch wheels→
69. 69Understand brushed versus brushless motors→
70. 70Look for a metal gear housing and a spindle lock→
71. 71Check the switch type and safety features→
72. 72Budget for consumables and parts→
73. 73Corded Versus Cordless on a 100 Dollar Budget→
74. 74What 100 Dollars Will Not Buy→
75. 75Angle Grinder Safety Rules and PPE→
76. 76Frequently Asked Questions→
77. 77What is the best angle grinder under 100 dollars?→
78. 78What is the best 4.5 inch angle grinder?→
79. 79Who makes the best corded angle grinders?→
80. 80What is the best angle grinder for a budget?→
81. 81Can an angle grinder cut concrete?→
82. 82How deep will a 4.5 inch grinder cut?→
83. 83Why are 9 inch grinders banned?→
84. 84How long should an angle grinder last?→
85. 85The Bottom Line→

Top 3 Angle Grinder Picks for 2026

The BLACK+DECKER BDEG400 takes the top spot because it pairs the highest review count on the list with a metal gear case and a spindle lock, which are the two features that separate a grinder that lasts from one that does not. The Metabo HPT G12SR4 is the one to buy if fatigue is your concern, since it is the lightest corded tool here at 4.0 pounds and it ships with five wheels and a hard case. The AVID POWER kit wins on value per dollar because no other pick includes cutting wheels, grinding wheels, a flap disc, spare brushes and a side handle out of the box.

Best Angle Grinders at a Glance

All ten models below were verified at or under the 100 dollar ceiling. The comparison table lists every pick with its key features so you can scan the whole field before reading the detail.

1. BLACK+DECKER BDEG400 – Best Overall Corded Grinder for Most People

The BDEG400 is the grinder we keep coming back to because it does the unglamorous thing well: it puts a metal gear case on a tool most buyers assumed would have a plastic one. That single spec explains why owners report years of service from one unit, and why it outperforms several pricier tools on the list in the one place that matters most under load.

It is also the most thoroughly reviewed grinder in this roundup, with well over 7,000 owner ratings. That volume matters for a tool review: a four-star average from a thousand owners tells you much less than a four-and-a-half-star average from seven thousand, because the complaints below show up consistently rather than as one-off anecdotes.

At 800 watts and 10,000 no-load RPM it is not the fastest tool here, and it is honest about that. The AVID POWER and SHALL kits reach 12,000 RPM on 900 watts, which means faster material removal on light cut-off work and less dwell time on the disc. For grinding welds, deburring and general household jobs, the difference narrows to nothing.

The 6.5-amp motor sits in the middle of this group, above the 6-amp SKIL and Metabo HPT machines and below the 7 to 7.5-amp class. The slide switch locks so it stays on for continuous work, and the side handle mounts in three positions. A spindle lock means you can change discs without hunting for a wrench, which is the feature that most changes daily friction.

What the BDEG400 handles well

This is the grinder for cutting angle iron and thin rebar, grinding down weld beads, cleaning rust off salvaged steel, deburring cut edges and sharpening chisels and mower blades. The metal gear case is the reason it holds up on those jobs, because heat is what kills plastic housings.

Owners also mention the tool-free disc changes often enough that it clearly matters in practice. A spindle lock plus a locking switch means a full disc swap takes seconds, not a minute, and you are less likely to rush a guard back on because you are annoyed.

Who should skip the BDEG400

Skip it if vibration bothers your hands on long sessions, which several owners flag, or if you work overhead where a slide switch is slower to release than a paddle. It is also not the choice for anyone cutting thick rebar all day: at 6.5 amps and 10,000 RPM, sustained cut-off work is not what this motor was built for.

2. AVID POWER 7.5-Amp – Best Budget Grinder With the Biggest Accessory Bundle

If your measure of value is how much usable tool you get for the money, this kit wins outright. It ships with two cutting wheels, two metal grinding wheels, a flap disc, a side handle, a spanner wrench, a wheel guard and two spare carbon brushes. Nobody else in this roundup includes replacement brushes in the box, and on a brushed motor those are the parts you will eventually need.

The 900-watt motor at 12,000 RPM is the top of this list for speed, and it is what makes the kit work on more than light hobby work. Owners use it for cutting sheet metal, grinding, polishing and rust and paint removal, and several report good results on concrete and masonry once a diamond disc is fitted.

Wheel compatibility is the sleeper advantage. The standard 7/8-inch arbor with a 5/8-inch-11 threaded spindle means DeWalt, DeWalt-compatible and generic cutting wheels all fit, so you are not locked into buying one brand of consumables. A spindle lock speeds up changes, and the tool-free guard adjusts to more than one position.

At 5.1 pounds it is the heaviest corded tool on this list, which you will notice on overhead work but not on bench jobs. The bigger concern is durability consistency: a small number of owners report motor failure and hot-tool smell after a few months, though the pattern is not universal and the manufacturer replaced failed units quickly.

When the AVID POWER kit earns its place

It makes sense when you are starting from nothing and need discs anyway. Since grinding and cutting wheels are consumables you will buy regardless, a kit that includes six of them effectively lowers the real cost of the tool, and the spare brushes extend the motor’s working life past the point most budget grinders quit.

It is also the pick for concrete, tile or masonry work, since the 7.5-amp motor has the headroom for diamond discs where a 6-amp machine stalls and leaves scorch marks.

Where it falls short

The switch is the part to inspect on arrival. Owners describe it as stiff and fragile-feeling, and a switch that fails mid-grind is a real safety problem rather than an annoyance. The outer flange can also bind and strip on some units, which makes a wheel removal frustrating if you do not have a replacement nut handy.

3. Metabo HPT G12SR4 – Best Value Grinder for Fatigue and Tight Spaces

The Metabo HPT is the one to buy when your hands get tired before your work does. At 4.0 pounds it is the lightest corded grinder here, and the low-profile gear case is narrower than the standard pancake shape, which is the difference between reaching a bolt behind a bracket and not reaching it at all.

Its owner rating is the second-highest in this roundup at 4.6 stars across nearly 5,000 reviews, which puts it in unusual company. ProToolReviews notes that Metabo HPT corded grinders consistently undercut comparable DeWalt models, and this one lands in the middle of the price range while carrying a full accessory package.

The bundle is unusually complete for this tier: five grinding wheels and a hard carrying case. For someone who does not own a single abrasive disc yet, that removes the first round of extra spending entirely. The case also makes it a realistic second grinder to keep in the car rather than in one shared toolbox.

A spindle lock handles disc changes, the left-mounted slide switch has a quick-off feature, and the sealed labyrinth housing is designed to keep dust and debris out of the drive gear. That sealing is a durability story rather than a feature you can see, but it is why the machine holds up around dusty shop work.

Why the weight matters more than the amps

The 6.2-amp motor is not going to cut a 6-inch steel plate or chew through rebar in one pass. What it will do comfortably is deburring, light weld cleanup, sharpening, cleaning rust and handling the repetitive small jobs where you hold the tool for an hour at a stretch.

For those jobs the 4.0-pound body is the more valuable spec, because weight accumulates across a shift in a way that amps do not. A lighter grinder held overhead or in a confined space is safer and less tiring than a stronger one you dread picking up.

Who should skip the G12SR4

If you cut thick stock or long sections of rebar regularly, step up to a 7 to 7.5-amp machine such as the AVID POWER or the Makita 9557PB. The one-year base warranty is also the shortest on this list, so it is a weaker pick for buyers who want long-term parts support.

4. Ryobi R18AG-0 ONE+ – Best Cordless Grinder for Existing ONE+ Owners

The cordless question at this budget comes down to whether you already own Ryobi ONE+ packs. If you do, the R18AG-0 turns a battery you already charge into a grinder, and that platform economics are the entire argument. If you do not, the same money buys a corded tool that never needs charging and never runs down mid-cut.

Owners rate it highly for cutting sheet metal cleanly, removing rust, and handling pipes and stone, and the angled body is genuinely compact for working inside a cabinet or between wall studs. The handle mounts in three positions, the guard adjusts without tools, and a spindle lock handles disc changes.

The wrench stores inside the handle, which is a small convenience that disappears the first time you need it and cannot find it. Spare part availability is listed at three years in Europe, which is worth checking against your own region before committing.

What cordless changes about your workflow

The advantage is not raw power, it is not running out of cord. Working up a ladder, out in a garden bed or in a vehicle with the engine off, a battery grinder is the only practical option, and at 9,000 RPM it still handles the same household tasks as the corded tools here.

The 9000 RPM figure is genuinely lower than the corded group, and owners report the motor runs hot under constant use. On continuous weld grinding or production deburring you will feel that gap. For intermittent work spread across a day, the platform savings usually matter more.

Who should skip the R18AG-0

Skip it if you do not own ONE+ batteries and chargers already, because the battery and charger are a separate purchase that erases the advantage. It is also the wrong pick for anyone doing sustained grinding in one session, where heat and lower speed become real problems.

5. CRAFTSMAN CMCG400B – Best Cordless Grinder for Warranty Cover and Heat Handling

The CRAFTSMAN CMCG400B earns its place on one piece of hardware: a cast metal gear housing. That is the component that decides whether a grinder survives sustained work, and combined with a 4.7-star rating across close to 3,000 owner reviews it makes this the strongest-rated cordless option at this price tier.

The housing’s job is heat dissipation, and heat is the failure mode that kills brushed grinders over time. Owners of this model repeatedly single out the cast metal case as the reason the tool stays cool, which matters more on a battery machine than a corded one because a stalled motor on a battery is an immediate loss of power.

A tool-free guard and a contoured over-molded handle in three positions cover the ergonomics, and the limited lifetime warranty is the longest coverage in this roundup by a wide margin. Buyers who have owned CRAFTSMAN tools for years treat that warranty as a real commitment rather than marketing.

Where the cast housing earns its keep

Long grinding sessions are where this grinder separates itself. If you are blending a weld for ten minutes, or deburring a stack of cut steel parts, the difference between a housing that sheds heat and one that traps it is a tool that keeps its speed and one that bogs down and gets hot in your hands.

The tool-free guard is also genuinely useful when you switch between cutting and grinding discs regularly, which is common when working through mixed materials.

What it costs you to own

The battery and charger are sold separately, so new buyers pay more than the headline figure suggests. If you already run CRAFTSMAN V20 packs, that cost drops to near nothing and this becomes the best-value cordless grinder here. If you run another platform, this one is a dead end regardless of how good the tool is.

The 8500 RPM output is the slowest in the roundup. It is fine for grinding, deburring and light cut-off work, but material removal on thicker stock will feel slower than the 11,000 to 12,000 RPM corded tools.

6. DEWALT DWE4011 – Best Corded Grinder for Tool-Free Guard Adjustment

The DWE4011 solves the single most annoying thing about budget grinders, which is adjusting the guard. The One-Touch guard rotates by hand with no tools, and the quick-change wheel release removes discs without a wrench. Between them, they remove the two most common reasons people take shortcuts on guard setup.

It replaced the older D28110 and long-term owners specifically credit the guard improvement on the redesign. That history matters because the model has been in production long enough that parts and accessories are well established, which is one of the practical reasons DEWALT keeps showing up in owner recommendations.

The 7-amp AC/DC motor runs at 12,000 RPM and accepts AC or DC power, and the 5/8-inch-11 spindle thread takes a wide range of 4-1/2 inch accessories from any brand. At 3.9 pounds it is the second-lightest corded tool here after the Metabo HPT, and the slim body suits smaller hands better than the pancake-shaped barrels on the Bosch and Makita.

What the guard system actually solves

A guard that needs a tool is a guard you will stop adjusting properly. The One-Touch design changes position in seconds, so you can match the guard to the wheel for grinding, cut-off or surface work rather than running one guard position for everything. Quick-change release means less time between cuts, which is where productivity on small jobs actually goes.

For anyone working overhead, the guard position matters as much as the switch, because you want the guard between your hand and the wheel rather than between your face and the sparks.

Where owners are less happy

Two things come up repeatedly. The first is the included hex wrench instead of the two-prong spanner wrench many buyers expect, so you may need to source a spanner for some spindle nuts. The second is noise and vibration: owners describe this grinder as louder and buzzier than average, which is partly the quick-change mechanism and partly just what a 7-amp tool feels like under load.

The small slide switch is also easy to miss with a thumb in gloves. If you want a control you can act on without looking, look at the Makita paddle switch instead.

7. Bosch GWS8-45 – Best Grinder for Maintenance Awareness and Long Grinding Sessions

The Bosch GWS8-45 is the pick for anyone who grinds for a living on a part-time basis. Owners report it holding speed through extended grinding sessions of around fifteen minutes without overheating, and the 7.5-amp motor has the headroom to keep working when a 6-amp machine would already be slowing down.

The Service Minder carbon brushes are the feature nobody else in this roundup offers in that form. The brushes stop the tool when maintenance is due rather than letting them wear until the motor fails, which turns a scheduled part swap into a prompt repair. On a brushed motor, brushes are a consumable you will replace, and knowing when is worth more than knowing where.

The slim-grip body is narrow enough for one-handed control, a large spindle lock makes disc changes fast, and the directed airflow design diverts dust away from the internal components. The included guard fits 4-1/2 inch abrasive discs with no contact, which prevents the guard from rubbing the wheel and eating it.

Why the brush system matters over time

Every brushed grinder in this roundup will need new carbon brushes eventually. The difference is whether you find out from a failed motor or from a warning. Bosch builds the warning into the brushes, so a worn set shuts the tool down while the motor is still fine.

That is a genuine long-term durability advantage on a machine whose guard is not tool-free. Anyone comparing brands should weigh brush serviceability as seriously as motor power, because the forum consensus is consistent: grinders do not usually fail from being too weak, they fail from being neglected.

Where the GWS8-45 frustrates owners

The guard needs an Allen key and locks into fixed positions, which is a step back from the DEWALT One-Touch design and a common complaint. The forward-mounted side handle is also awkward for work above waist height, since your grip ends up oriented for a bench job.

Documentation on cut-off use is inconsistent, and this model carries the highest share of one-star reviews in the roundup at six percent. Check the manual that ships with your unit before using it for cut-off work rather than relying on conflicting guidance.

8. SKIL 9295-01 – Best Low-Cost Grinder for Light Household Work

The SKIL 9295-01 is a straightforward 6-amp corded grinder with a metal gear housing and a tool-less guard, which is a better specification sheet than most tools cost twice as much. If your work is household rather than trade, it does the job and stops asking for attention.

The metal housing is the standout. It is the durability feature owners repeatedly praise, along with light weight and the three-position handle that includes a top mount for overhead work. A vibration-reducing handle keeps the buzz down, and the disc-change wrench stores inside it rather than rattling loose in a toolbox.

At 4 pounds and 11,000 RPM it is light for its output class, and owners report cutting thin-gauge and thicker steel readily. One long-term owner still has a roughly 25-year-old unit in service, which is a reasonable signal about the housing quality.

The case for spending your money elsewhere

Your main enemy with this tool is the cord. At roughly four to five feet it is the shortest in this roundup, which means an extension cord for most garage work, and cord length is a frequent topic in grinder-owner discussions because a thin extension cord on a 6-amp motor causes voltage drop, heat and reduced speed.

The trigger lock also takes getting used to, and a few owners find the grip shape awkward. Neither is serious on its own, but together they make this a tool you tolerate rather than one you enjoy.

Jobs it suits well

Deburring sheet metal edges, cleaning light surface rust, sharpening hand tools, trimming hardware and doing odd jobs around the house where the grinder sits in a drawer between uses. For that pattern of use it is hard to argue with the specification.

Anyone running this tool continuously on weld cleanup or production work will outgrow it. Move up to a 7 to 7.5-amp machine such as the DEWALT DWE4011 or the Makita 9557PB instead.

9. SHALL 7.5-Amp Kit – Best Budget Grinder for Two Guards and a Full Disc Set

The SHALL kit matches the AVID POWER on paper for power output, at 900 watts and 12,000 RPM, but adds something the other one does not: two tool-free wheel guards. One is set up for cutting and one for grinding, which is the correct configuration rather than one guard being repositioned for every task.

That matters because a guard set for grinding is not set for cutting. Having both guards means you can be correct without an adjustment step every time you switch between removing weld bead and cutting a piece of stock, and both release without tools.

The consumable bundle is the other draw: three cutting wheels, three 60-grit flap discs, two guards, a side handle, a spanner and two spare carbon brushes. Like the AVID kit, it effectively hands you enough abrasive to get through the first several jobs without a separate accessory purchase.

What you get for the money

At 3.7 pounds it is the lightest grinder in the roundup overall, cordless models included, and the narrow body with a rubber-coated non-slip side handle takes some of the sting out of long buffing sessions. The 7/8-inch arbor and 5/8-inch-11 spindle thread match the AVID kit, so consumables carry across.

Owners consistently describe it as punching above its class, which is a low bar that this hardware clears comfortably on speed and bundle size.

Where it falls behind

There is no variable speed, so you get off or full speed and nothing between. That limits fine finishing work and makes it a poor choice for polishing or delicate deburring where you would feather the trigger. The switch position is also awkward to reach without moving your grip.

The side handle can loosen under prolonged vibration-heavy work, and the motor runs hot during extended buffing. A few owners report short service lives. If motor longevity matters more to you than the accessory bundle, the Makita 9557PB or the DEWALT DWE4011 are the sturdier choices at this ceiling.

10. Makita 9557PB – Best Grinder for Paddle Switch Safety and Weld Finishing

The Makita 9557PB takes the highest share of five-star reviews in this roundup at 85 percent, and owners in welding and fabrication forums consistently single out Makita corded grinders as the reference point for build quality at this price level. The paddle switch is the reason many of them buy it.

A paddle switch is a deadman control: squeeze to run, release to stop, and it disengages the moment you let go. For overhead work, for anyone working near a rotating wheel, and for beginners learning tool handling, that is a meaningfully safer interface than any slide switch on this list. It also locks on for continuous work.

The AC/DC switch runs the tool from either mains power or an alternative source, which is genuinely useful on remote job sites with a generator. The labyrinth construction seals the drive gear and bearings against debris, and the spindle lock handles disc changes.

Where the small barrel earns its name

At 2-1/2 inches the barrel diameter is the smallest here, which is what lets you get into tight spaces and hold the tool one-handed. Owners rate the constant speed as the reason weld finishes come out even, since a motor that slows under pressure gouges instead of smoothing.

Low vibration is another recurring comment, and several trades users describe it as a shop staple. That consensus explains the review profile even though the review count is the lowest in the roundup at just over 1,000.

Where it will not suit you

The one-year limited warranty is the weak point, matching the Metabo HPT for shortest coverage on the list, and that matters for a tool you might keep for a decade. Owners also note a small jump at startup before speed builds, which is worth expecting rather than being surprised by.

If you need variable speed for finishing work, this is not the tool. If your budget stretches past this ceiling, the newer brushless models in the same line are worth a look, but they fall outside the limits of this guide.

How to Choose an Angle Grinder Under 100 Dollars

Every pick above clears the same ceiling, so the differentiator is not price but job fit. Here is how to narrow the field without overthinking it.

Match amperage to the job

Amps determine how long you can hold a cut before the motor bogs down. Under 6 amps suits sharpening, light deburring and household touch-ups. Between 6 and 6.5 amps covers weld cleanup and general metalwork. At 7 amps and above you can hold a cut-off wheel through thick stock and section rebar without stalling.

For reference, the group runs from a 6.0-amp SKIL and 6.2-amp Metabo HPT up to 7.5-amp machines in the AVID, Bosch, SHALL and Makita. The 6.5-amp BLACK+DECKER sits in the middle. If you cannot decide, buy the higher number; a grinder that is slightly too strong is a better problem than one that stalls mid-cut and burns the wheel.

Decide between 4.5 inch and 6 inch wheels

Nearly everything in this price range uses 4-1/2 inch wheels, and for most home and light trade work that is the right call. Smaller wheels are cheaper to replace, easier to control and safer on a lightweight tool. Six-inch wheels give more cutting depth and suit heavier stock and concrete, but they need a bigger, better-cooled machine than most of these ten provide.

Depth of cut is the practical difference. A 4-1/2 inch wheel leaves roughly one inch of reach past the guard on a typical body, so cutting a piece of angle iron or light bar stock is comfortable. A six-inch wheel adds meaningful depth for slabs and thick plate, and no pick on this list is built around that capability.

Understand brushed versus brushless motors

Every tool in this roundup uses a brushed motor except the cordless models, whose motors are also effectively brushed designs in this class. Brushless motors run cooler, need no brush replacement and last longer, and they start appearing well above this ceiling. That is genuinely one of the things this price limit does not buy.

What you can do instead is plan for brush life. The AVID and SHALL kits ship with spare carbon brushes, the Bosch flags brush wear through its Service Minder system, and the Makita seals its drive gear against debris that shortens brush life. Those three details matter more to tool longevity than the last 300 watts of motor output.

Look for a metal gear housing and a spindle lock

These two details separate the picks that survive from the ones that do not. A metal gear housing dissipates heat and resists cracking; a plastic one is fine for intermittent use and fails under sustained load. Four tools here have a metal or cast metal housing: the BLACK+DECKER BDEG400, the SKIL 9295-01 and the CRAFTSMAN CMCG400B, plus the Ryobi listed as metal.

A spindle lock lets you change discs without a wrench by locking the shaft while you back off the nut. It is the feature you will notice every single time you work, and all ten picks offer either a spindle lock or a tool-free release mechanism.

Check the switch type and safety features

A paddle switch, as on the Makita 9557PB, is a deadman control that stops the tool the instant you release it. A slide switch is fine once you know where it is, but the small switch on the DEWALT DWE4011 is easy to miss with a gloved thumb. Either way, confirm you can reach the switch without taking your eyes off the work.

Also check guard adjustment. The DEWALT One-Touch and the tool-free guards on the AVID, SHALL, SKIL, Ryobi and CRAFTSMAN adjust by hand. The Bosch needs an Allen key and snaps into fixed positions, which is a downgrade in convenience for a tool with a premium-feeling body.

Budget for consumables and parts

Discs are not included forever. Cutting discs, grinding wheels and flap discs are all consumables, and the practical cost of a budget grinder over a year includes several sets of them plus, on a brushed motor, a set of carbon brushes.

Brands with well-established parts channels are worth something here. Ryobi lists spare part availability for three years in Europe. Bosch and Makita have deep accessory and service networks. Buying from a brand with a stocked parts channel means a failed switch or worn brush is a repair rather than a replacement.

Corded Versus Cordless on a 100 Dollar Budget

Corded wins on power per dollar and never runs down. Every corded pick here delivers 6 to 7.5 amps continuously with no charging, no battery degradation and no platform lock-in. At this ceiling, corded is the default answer for anyone doing real metalwork.

Cordless wins on access and freedom from the outlet. Two picks fit this budget, the Ryobi R18AG-0 and the CRAFTSMAN CMCG400B, and both run in the 8,500 to 9,000 RPM range, below the corded group. Neither ships with a battery or charger, so the honest comparison is the corded grinder plus a disc set against a battery platform you may or may not already own.

If you already own ONE+ or V20 packs, a cordless grinder effectively becomes free money and the comparison ends. If you own no packs at all, stay corded and put the money into a better motor with more amps.

What 100 Dollars Will Not Buy

Honesty about limits is more useful than a padded list. At this ceiling you are not getting several things that are standard higher up.

You are not getting a true brushless motor. Every pick here is a brushed design, which means consumable carbon brushes and a service life measured in brush changes rather than decades.

You are not getting meaningful 9-inch capability. Nine-inch grinders are restricted in many regions for a reason, and even where they are permitted they need a much larger, heavily cooled machine. Nothing on this list substitutes for one.

You are not getting wheel brakes. A brake stops the wheel within seconds of release, which matters on large cutting discs, and it is effectively absent at this price point on every pick reviewed here.

You are also not getting a heavy-duty 7 to 9 inch concrete and masonry machine, high-grade dust extraction, or the long warranties that come with professional brands. What you get instead is a well-made 4-1/2 inch tool with a metal gear housing, a guard and a switch, which covers the overwhelming majority of homeowner and light-trade work.

Angle Grinder Safety Rules and PPE

An angle grinder is among the easiest tools in the shop to use badly, and the consequences are immediate. The rules below are not optional.

Always wear safety glasses or a face shield, hearing protection, gloves and non-snaggy clothing. A grinding wheel throws sparks and abrasive fragments at high speed, and loose gloves or a rolled-up sleeve near the wheel is how fingers get taken.

Check that the wheel matches the tool. Never use a cut-off wheel for grinding or a grinding wheel for cutting, keep the guard in place and correctly positioned for the operation, and make sure the wheel spins free before you power up. Do not fit a wheel larger than the tool is rated for.

Let the wheel reach full speed before touching the work, and lift it off rather than pushing it down into the material. Sparks and grinder kickback are worst when a wheel binds or the angle is wrong, so keep the wheel at roughly a right angle to the work surface.

Use the side handle on every job. It is the main defence against a kickback reaction when the wheel snags, and skipping it for short cuts is how experienced users get hurt.

On 9-inch grinders, note that many regions restrict their sale or use for good reason. The physics of a large wheel at speed means the failure mode is far more dangerous, and restrictions exist because of real injury data. At this budget the question is moot, since no pick here is a 9-inch machine.

For concrete and masonry, use a diamond-rated cutting wheel and a guard with no dust port, and expect dust. Grinding concrete produces respirable silica dust that requires proper respiratory protection and outdoor or well-ventilated work. Never dry-sand a surface with a cut-off wheel attached to the tool.

Frequently Asked Questions

The Bottom Line

After comparing ten angle grinders under 100 dollars across more than 20,000 owner reviews, the BLACK+DECKER BDEG400 is the pick most people should buy. Its metal gear housing, spindle lock and three-position handle cost almost nothing extra over the cheapest options here, and the volume of owner feedback behind it is unmatched in this group.

Buy the Metabo HPT G12SR4 instead if you work overhead or for long stretches and want the lightest body on the list, with five grinding wheels and a hard case included. Buy the AVID POWER 7.5-amp kit if you need concrete capability or want every consumable and spare carbon brush in the box on day one.

Pick the DEWALT DWE4011 for the best tool-free guard, the Bosch GWS8-45 for long grinding sessions and brush service alerts, and the Makita 9557PB if a paddle switch and low vibration matter more than warranty length to you. If you already own Ryobi ONE+ or CRAFTSMAN V20 batteries, the cordless options here are worth a closer look, and everyone else should stay corded.

Whichever you choose, buy two cutting discs and a box of flap discs at the same time. A grinder is only as good as the consumable on it, and running a grinding wheel for cutting is the fastest way to ruin a tool and a workpiece.