Description

Key Features

Pneumatic-Level Output

The brushless motor delivers up to 0.3 HP, giving this cordless die grinder the power to replace a hose-and-compressor setup for a lot of grinding, sanding, and cut-off work.

3-Mode Control

Three speed modes and a variable-speed trigger give you better control with small accessories, so you can match the tool to delicate cleanup, wire brushing, or faster cut-off work.

Hose-Free Access

Running on the Milwaukee M12 platform means more mobility in tight spots, under hoods, and around equipment where an air hose just gets in the way.

Overview

The Milwaukee 2486-22 M12 FUEL 1/4″ Straight Die Grinder 2 Battery Kit is a cordless straight die grinder built for grinding, sanding, deburring, and cut-off work where mobility matters. This is a straight die grinder designed for detail metalworking, service work, and accessory-driven surface prep. Model 2486-22 includes the tool, two M12 REDLITHIUM CP2.0 batteries, a charger, carrying case, and two wrenches.

What makes this tool matter is the combination of cordless access and real output. Milwaukee rates it at up to 0.3 horsepower and positions it to replace pneumatic die grinders, which is exactly why this kit makes sense for mechanics, metal fabricators, and maintenance pros who are tired of dragging around an air hose and compressor for short jobs. The straight body design also helps when you need to get into narrow spaces or work inline with the accessory.

Control is a big part of the story here. The Milwaukee 2486-22 M12 FUEL 1/4″ Straight Die Grinder 2 Battery Kit uses 3-mode RPM control plus a responsive variable-speed trigger, so you are not stuck with one all-or-nothing speed. That matters when you switch from lighter cleanup work to a wire wheel or a 2 inch cut-off wheel. Based on the provided image data, the three modes are geared around common accessory use: 10,000 RPM for delicate applications, 15,000 RPM for wire wheel brushing, and 21,000 RPM for faster cut-off work.

On the hardware side, this is a brushless tool with a 1/4 inch collet and a straight handle layout. Milwaukee also calls out vibration dampening for improved comfort and an LED light for better visibility at the work surface. Those are not throwaway features on a die grinder. Less vibration helps on longer cleanup jobs, and the LED is useful when you are working inside engine bays, machinery, or shadowed corners of a fabrication setup.

The tool is optimized for 2 inch accessories and fits 1/4 inch shank accessories. That gives you a clear target for accessory choice and helps avoid guesswork when setting the tool up for sanding, surface prep, or small cut-off tasks. Since it is part of the M12 system, battery compatibility is straightforward for anyone already running Milwaukee 12V cordless tools. If you are already invested in M12, this tool drops right into the lineup without adding another charger platform to the truck or shop.

Jobsite practicality is another strong point. Bare tool weight is listed at 1.2 lb, and weight with battery is 1.6 lb, so it stays easy to manage for overhead work, awkward angles, and long periods of one-handed use. Overload protection also adds a layer of protection when the tool is pushed hard. For a die grinder, that mix of power, low weight, and cordless freedom is what makes the tool useful day after day instead of just looking good on paper.

If you mostly work at a bench with permanent air lines, pneumatic may still be fine. But if your work moves around the shop, out to the driveway, onto a service truck, or into places where hose management slows you down, this kit makes a strong case fast. It is a good fit for automotive service, maintenance crews, metalworking, and serious DIY users who want a compact cordless die grinder that is easier to grab and use than an air tool setup.

Milwaukee 2486-22 M12 FUEL 1/4″ Straight Die Grinder 2 Battery Kit in Hand, Not on a Hose

This kit is about replacing setup time with actual work time. Instead of pulling out a compressor and hose for small grinding jobs, you can grab the tool, pick the right accessory, and get moving.

• 1/4 inch collet fits standard 1/4 inch shank accessories
• Optimized for common 2 inch accessories used for sanding and cut-off work
• Variable-speed trigger gives you better control than a one-speed air tool

What’s in the Box

• (1) M12 FUEL 1/4″ Straight Die Grinder (2486-20)
• (2) M12 REDLITHIUM CP2.0 Battery Packs (48-11-2420)
• (1) M12 Lithium-ion Battery Charger (48-59-2401)
• (1) Carrying Case
• (2) Wrenches

At a Glance

0.3 HP

Motor Output

21,000 RPM

Top Speed

2 in

Optimized Accessory Size

Key Specifications

Battery System	M12
Collet Size	1/4 in
Motor Output	0.3 HP
No-Load Speed	0 to 21,000 RPM
Speed Modes	3
Wheel Diameter	2 in
Weight Excluding Battery	1.2 lb
Weight with Battery	1.6 lb

Compatibility

Battery Platform

Compatible with Milwaukee M12 batteries.

Accessory Interface

1/4 inch collet fits 1/4 inch shank accessories.

Accessory Size

Optimized for common 2 inch accessories for grinding, sanding, and cut-off applications.

Built For

AutomotiveMetalworkingMaintenanceService MechanicsDeburringSurface PrepCut-Off WorkGrinding and Sanding

Pro Tip

Start with the speed mode, then feather the variable-speed trigger. The provided mode guidance is useful: lower speed for delicate work, mid speed for wire brushing, and top speed for 2 inch cut-off wheels.

Warranty & Support

5 Year Tool, 2 Year Battery.

Tool Nut’s Take

Tool Nut’s Take

One of the handiest ways to ditch the air hose

The Milwaukee 2486-22 M12 FUEL 1/4″ Straight Die Grinder 2 Battery Kit gives you real die grinder performance in a compact cordless package that is easy to grab for everyday cleanup and cut-off work.

• Who it’s for: Mechanics, maintenance techs, metal fabricators, and serious DIY users who want cordless access without giving up control.
• Why it stands out: The 0.3 HP output, 3-mode speed control, low weight, and M12 battery compatibility make it a practical replacement for many pneumatic tasks.
• Worth knowing: This tool is optimized around 2 inch accessories and 1/4 inch shank fitment, so match your attachments to what the tool is built to run best.

Common Questions

• Is this a cordless or pneumatic die grinder? It is a cordless M12 straight die grinder designed to replace pneumatic die grinders for many common applications.
• What size accessories does it accept? It uses a 1/4 inch collet and is optimized for common 2 inch accessories.
• Does it have variable speed control? Yes. It has 3-mode RPM control and a variable-speed trigger.
• What battery platform does it use? It runs on the Milwaukee M12 battery system.