
DeWalt
DeWalt DCG415 Angle Grinder
DeWalt's Power Detect flagship grinder: it senses larger batteries and raises output to 1,350 watts, spinning to a class-leading 9,000 RPM. The Kickback Brake and E-Clutch electronics shut the wheel down on pinch events before the tool wrenches your wrist.
Specifications
Features
Pros
- ✓Class-leading 9,000 RPM and 1,350W output with a big battery — Pro Tool Reviews measured it at the top of the 20V class.
- ✓The Kickback Brake genuinely fires on wheel pinches; owners describe it saving wrists on rebar cuts.
- ✓Power Detect scales output up with 8Ah+ packs, so the tool grows with your battery investment.
- ✓At under 4 lbs bare it is light for the power class, helping overhead and fatigue-prone work.
- ✓E-Clutch stops the driveline on bind-ups instead of spinning the tool around the wheel.
- ✓One-touch guard rotates without tools and locks positively.
Cons
- ✗Headline power requires an 8Ah or larger battery — on compact packs it is a mid-pack grinder.
- ✗Runtime under sustained load is the class complaint: grinding is where cordless still taxes batteries hardest.
- ✗The brake's abrupt stop takes getting used to and can jerk cut-off wheels if you feather the paddle.
- ✗Kit pricing with the big battery pushes $279+, eroding the value story.
- ✗DeWalt's 3-year warranty trails Milwaukee's 5-year coverage on the competing 2880.
- ✗No variable speed for surface-prep and polishing tasks.
Common Questions
What does Power Detect actually do?
Does the Kickback Brake really work in practice?
How heavy is it compared to other cordless grinders?
Is it good for polishing and surface prep?
What's the real-world runtime story?
Compare the DeWalt DCG415 Angle Grinder
Related tools
More from DeWalt →
Milwaukee's braking M18 Fuel grinder, rated equivalent to an 11-amp corded tool with an 8,500 RPM brushless motor. The paddle-switch no-lock configuration is the OSHA-friendly pick; slide-switch and variable-speed siblings (2888) fill out the family.

Flex's flagship 24V grinder, part of the brand's 2021 North American relaunch. A sensor-free brushless motor spins 4-1/2 or 5-inch wheels at up to 10,000 RPM - the highest top speed in this roundup - with touch-control speed settings of 3,500/5,000/7,000/10,000 RPM. Anti-kickback sensing stops the motor on bind-up, guard adjustment is one-step tool-free, and the vibration-suppression side handle tames buzz. FX3171A is the no-lock paddle version; FX3181A is the side-switch sibling. THERMA-TECH heat management and 24V packs push it toward corded-class sustained output.

Makita's long-running brushless LXT grinder with Automatic Speed Change: it drops RPM and raises torque under load to keep the wheel moving. The slide switch with lock-on suits continuous grinding; a paddle-switch sibling (XAG09) covers no-lock jobsites.

The October 2024 successor to Metabo HPT's original G3612DA, with a 1500W-max brushless motor the company rates at 18% more power than the outgoing model. A 6-position dial spans 3,200-10,000 RPM plus an auto mode, and the safety package includes an electric quick brake, anti-kickback protection, soft start, and zero-voltage restart protection. Dust- and water-resistant switch, tool-less wheel guard, and dual LED work lights round it out. Being MultiVolt, it runs on 36V packs or Metabo HPT's AC adapter - the only grinder in this class that can go corded. G3612DVFQ6 is the paddle-switch twin; G3615DVFQ6 is the 6-inch big brother.

Bosch's PROFACTOR-tier 'Spitfire' flagship grinder, pairing a BITURBO brushless motor with CORE18V High Power batteries to claim 13-amp corded-equivalent output. Runs 5- or 6-inch wheels at 9,000 RPM on a standard 5/8-11 spindle, with an electric brake, KickBack Control that shuts the tool off in a bind, restart protection, and a Vibration Control two-position side handle. Connected-ready for the Bosch PRO360 app (module sold separately); the GWS18V-13PN is the paddle-switch sibling and the GWX18V-13CN swaps to X-LOCK.

Ridgid's current 18V flagship grinder (May 2022), superseding the Octane-era R86042B with a brushless motor Ridgid rates at up to 25% more power than its predecessor. Runs 4-1/2-inch wheels at 9,000 RPM with an electric brake, a grip-spanning paddle switch, tool-free guard and wheel changes via a folding-tab flange nut, and a 2-position side handle. Sold exclusively at Home Depot; registering unlocks Ridgid's free-parts-and-service Lifetime Service Agreement.