Milwaukee 2888-20 18V Cordless Grinder — 4.5/5-in, 8,500 RPM, Variable Speed, Tool Only

Overview

The Milwaukee 2888-20 is a compact, cordless grinder designed for flexibility on handheld projects or in constrained spaces. Built for the Milwaukee M18 system, this tool prioritizes balance and control while delivering solid material removal when you need it most. This is a tool-only option, so you decide which battery and charger fit your setup.

Power, speed, and control

With a top speed of 8,500 RPM and a five-speed range from 3,500 to 8,500 RPM, you can tailor performance to the task—whether you’re removing burrs, blending welds, or prepping edges. The variable speed settings let you dial in the right pace for metal, stone, or composite materials, helping reduce heat buildup and unwanted chatter.

• Delivers up to 8,500 RPM for aggressive material removal
• Five selectable speeds for precise control across tasks
• Tool-free guard adjustment for quick, safe setup
• Tool-free accessory changes to switch discs without tools

Safety features and workflow

The grinder includes a brake that stops the wheel in less than two seconds, which can help you transition between passes and reduce downtime between tasks. A paddle switch provides reliable one-handed operation, keeping your other hand free for guiding the workpiece and maintaining control during long sessions.

• Brake stops the wheel in 2 seconds or less
• Paddle switch for intuitive single-handed use
• Low-maintenance, tool-free guard adjustments for safer setups

Real-world use cases

Imagine detailing weld prep, removing scale from steel, deburring corners, or smoothing edge transitions on a metal frame. The cordless design adds versatility for shops, garages, or on-site work where outlets aren’t readily available. The ability to use standard 4.5- to 5-inch discs supports a wide range of grinding and finishing tasks without swapping tools mid-project.

Design, compatibility, and expectations

Being a tool-only model, this grinder pairs with your existing Milwaukee M18 battery and charger. The compact form factor and balanced weight distribution help reduce fatigue during extended sessions, while the paddle switch and tool-free guard changes enable quick adjustments when your workflow shifts. This is a flexible option for users who value portability without sacrificing power.