Brushless vs Brushed Angle Grinder: Which One Should You Buy?
Brushless cordless grinders and a corded grinder compared by stated speed, voltage, weight and warranty, with the motor-type choice explained for garage jobs.
On this page
A rusted bolt on a brake job and a weld that needs smoothing in the garage set up the brushless vs brushed angle grinder choice in plain terms: for cordless garage work, the brushless listings here are the picks to compare, while a corded model beside an outlet still earns its place for steady bench-side work. Brushless listings here are all cordless, with electronic control and no brushes to wear, while the corded listing gives outlet power without a brushless label. The rest of the choice comes down to stated speed, voltage, weight, guards and warranty.
As an Amazon Associate I earn from qualifying purchases. GarageToolHQ earns a commission when you buy through links on our product pages, at no extra cost to you. Read our affiliate disclosure.
Below: where the motor difference comes from, how the listed grinders compare on stated specs, and the safety points that apply to every grinder here.
Brushless vs brushed angle grinder: where the difference comes from
A brushed motor runs with brushes that carry current to the spinning part of the motor, and those brushes wear with use. A brushless motor replaces the brushes with electronic control, so the motor runs without that wearing part. In the listings here, the brushless listings state a brushless motor in the title, and the corded Makita listing states no motor type at all, so the comparison is between stated brushless cordless models and a corded model without a brushless claim. Power source matters as much as motor type: cordless models run on a battery platform, while the corded model runs on outlet power and never needs a charged battery.
| Type | How it works | In the garage? |
|---|---|---|
| Brushless cordless grinder | Battery powered, electronic motor control, no brushes | Yes, for work away from an outlet; the flathead model adds tight-space access |
| Corded model without a brushless label | Outlet powered, steady power while plugged in | Yes, for bench-side work near an outlet |
The label decides the group, not the shape of the tool. If a listing does not state brushless, the guide treats it as unlabelled rather than claiming a motor type the listing never names.
The gear, ranked by stated specs
The gear below is ordered from the strongest overall listing to the weakest on stated specs. First is the DCA cordless angle grinder, a brushless model that comes as a full kit. Its bullets state a 20V brushless motor at 8500RPM, a 4000mAh battery with 2H fast charging and a real-time battery display, a tool-free guard, a 2-position side handle, and 7/8 inch arbor size with M14 spindle thread. The kit lists a 4.0Ah battery, a 2A charger, a sanding guard, a cutting guard, a shock absorbing handle, a wrench, cutting discs, abrasive discs, flap wheels and a carrying bag. It weighs 5.5 pounds, its wattage is listed as 630 watts, and its spec table states a 2 year warranty. The full kit and the stated warranty put it first, since no other listing here bundles a battery, a charger and discs together.
Next is the Milwaukee M18 FUEL brushless cordless grinder with a paddle switch. Its bullets claim output on par with an 11A corded grinder, with a RAPIDSTOP brake that stops most wheels in less than 2 seconds and a low profile flathead design for tight spaces. The spec table lists 18 volts, a maximum rotational speed of 8500 rpm, dimensions of 14.02 x 2.78 x 3.5 inches and a weight of 1.2 pounds, and the title states that it is tool-only, so no battery is listed among its included parts. No warranty term is stated in the data for this listing, which keeps it behind the DCA kit despite the brake and the flathead design.
Third is the Milwaukee M18 brushless cut-off grinder. Its bullets state 11,000 RPM, a paddle switch design, tool-free guard adjustment, overload protection and an electronic clutch. The spec table lists 18 volts, a maximum rotational speed of 11000 rpm and dimensions of 12.87 x 10.71 x 4.29 inches, with a material type of metal and plastic. No weight is stated, and the warranty description states only Manufacturer Warranty with no term, so no concrete warranty term can be quoted for it. Its stated 11000 rpm matches the corded model, and the clutch and overload protection keep it ahead for cordless work, while the missing weight and warranty term hold it back.
Last is the Makita corded paddle switch cut-off and angle grinder. Its bullets state a 7.5 AMP motor, a small diameter barrel grip of 2 to 1/2 inches, labyrinth construction that seals the motor and bearings from dust and debris, a lock on and off feature, an AC and DC switch, and a metal gear housing with an all ball bearing design. The spec table lists 120 volts, 900 watts, 1.25 hp and a maximum rotational speed of 11000 rpm, the bullets state 4.5 pounds, and the included parts list a diamond blade, grinding wheels, a wheel guard and an aluminum case. The spec table states a 1 year warranty. It ranks last because it is the only corded listing here and it states no brushless motor, even though its case and blade bundle suit a fixed bench-side setup. For a cordless-only comparison, see best cordless angle grinder for garage.
Corded or cordless: the other choice
Cordless brushless models here run on 18 volts or 20 volts, and the battery platform decides whether a charger and a battery must be bought separately, as with the tool-only Milwaukee listing. The corded Makita model runs on 120 volts and needs an outlet, but it never waits on a charge. Weight also differs with the platform: the DCA lists 5.5 pounds, the Makita lists 4.5 pounds, and the flathead Milwaukee lists 1.2 pounds as a tool-only figure. Compare the stated weight with the job, since a grinder held overhead feels different from a grinder used on a bench. See cordless vs corded angle grinder for the wider power-source comparison.
Use rated jack stands on solid ground, wear eye protection with power and air tools, keep fuel-burning equipment out of a closed garage, and follow the manual for every tool. Read our Safety Disclaimer.
Grinder safety, whatever the motor type
Wear eye protection, keep the guard fitted for the work, and use discs made for the grinder and the material. Keep hands clear of the spinning disc, let the wheel stop before setting the tool down, and follow the manual for the guard position and the handle setup. Battery models should be charged with the charger made for the platform, and corded models should be unplugged before changing a disc. Never grind toward the body, and keep flammable material away from sparks.
Frequently Asked Questions
Is brushless better than brushed for an angle grinder?
Among these listings, the brushless models are the cordless picks, since every brushless listing here is cordless and runs without brushes to wear. No brushed model is listed here, so the comparison is brushless cordless against a corded model without a brushless label, which still suits steady work beside an outlet.
Which grinder here has the highest stated speed?
The Makita corded model and the Milwaukee M18 brushless cut-off grinder both state 11000 rpm, while the DCA brushless model and the Milwaukee M18 FUEL flathead model both state 8500 rpm.
Do any of these grinders include a battery?
The DCA kit lists a 4.0Ah battery and a 2A charger among its included parts. The Milwaukee M18 FUEL listing states tool-only, so no battery is listed for it.
What warranty terms are stated?
The DCA listing states a 2 year warranty and the Makita listing states a 1 year warranty. The Milwaukee listings state no concrete warranty term in the data.
What guard features are stated?
The DCA listing states a tool-free guard, the Milwaukee M18 brushless listing states tool-free guard adjustment, and the Makita listing states a wheel guard among its included parts.
Related: best cordless angle grinder for garage, cordless vs corded angle grinder and bench grinder vs angle grinder.
