Milwaukee 2486-20 M12 FUEL 12V Brushless Straight 1/4″ Die Grinder – Tool Only

Built to outperform traditional air-powered tools, the Milwaukee 2486-20 M12 FUEL 1/4″ Straight Die Grinder gives you cordless freedom without sacrificing performance. Designed for professional grinding, shaping, and deburring, this die grinder is powered by a 0.3 HP brushless motor that delivers 20% more power than standard pneumatic grinders, making it a dependable choice for metalworkers, mechanics, and fabricators. The tool runs on Milwaukee’s M12 battery system, offering three speed settings up to 20,000 RPM, and a variable-speed paddle trigger for precise control while working with common 2” accessories. With no hoses or compressors to slow you down, the M12 FUEL die grinder improves access in tight spaces and cuts down on maintenance, all while reducing operating costs.

Designed for pros who are tired of air line tangles and shop downtime, this cordless die grinder delivers the same torque and reliability found in pneumatic systems, but with more portability. Whether you’re working under the hood, in a welding bay, or on a jobsite far from a compressor, this grinder gets into narrow spots easily with its compact design. It’s part of Milwaukee’s growing M12 platform, so if you’re already running Milwaukee cordless tools, it’s an easy addition

Milwaukee M12 FUEL 12V Brushless Straight 1/4″ Die Grinder At a Glance

• 20% More Power Than Pneumatic: Outperforms standard 0.25 HP pneumatic die grinders with a 0.3 HP brushless motor for faster and more efficient grinding.
• 3-Mode Speed Control: Select from three preset RPM ranges (up to 20,000 RPM) for improved safety and performance with different attachments.
• Variable-Speed Paddle Trigger: Enables precise RPM control during operation, allowing you to adapt to the task in real time.
• Greater Mobility & Access: Cordless design eliminates air hoses and compressors, increasing maneuverability and reducing jobsite setup.
• Optimized for 2” Accessories: Designed for most common abrasive wheels and bits, improving versatility in grinding and finishing tasks.
• POWERSTATE™ Brushless Motor: Milwaukee’s engineered motor delivers consistent torque and long service life.
• REDLITHIUM™ Battery Technology: Compatible with all M12 batteries, providing long runtime and fade-free power.
• Part of the M12™ System: Expands your cordless lineup with over 100 Milwaukee tools powered by the same 12V platform.

Markets

• Metalworking & Fabrication: Offers portable grinding power for prepping edges, smoothing welds, and cleaning parts without an air compressor.
• Automotive Repair & Maintenance: Easily reaches into engine compartments and undercarriages for rust removal, porting, or polishing jobs.
• Construction & Renovation: On-site cutting and finishing where pneumatic tools are impractical or unavailable.
• Municipal Services: Great for maintenance crews performing field repairs on gates, benches, or heavy equipment.
• Trade Schools & Technical Programs: Simplifies tool access and safety for students learning precision grinding and fabrication techniques.
• HVAC & Electrical Trades: Useful for shaping enclosures, conduit ends, or preparing metal parts for install in confined areas.
• Fleet & Utility Maintenance: Perform fast mobile repairs on heavy machinery or service vehicles without needing a compressor trailer.

This die grinder supports a wide range of trades and applications. Auto mechanics can use it for porting heads, polishing welds, or grinding rust in tight engine bays without needing an air hose. Metal fabricators will appreciate the high RPM and power for shaping or smoothing parts. Construction crews benefit from its portability and ability to work in areas without power or compressors. Municipal workers and fleet maintenance crews can complete metal repair and restoration jobs on the go with minimal setup. It’s also a strong fit for educational institutions, letting students work with professional-grade tools while avoiding the complexity of pneumatic systems.

Milwaukee 2486-20 M12 FUEL 12V Brushless Straight 1/4″ Die Grinder – Tool Only Features

• 20% More Power Than Pneumatic
• 0.3 HP Motor Output
• 3-MODE RPM CONTROL
• Greater Mobility and Access
• Optimum performance with 2″ Accessories
• POWERSTATE Brushless Motor Technology
• M12 REDLITHIUM Battery Technology
• Part of the M12 System

Milwaukee 2486-20 M12 FUEL 12V Brushless Straight 1/4″ Die Grinder – Tool Only Includes

• (1) M12 FUEL 12V Lithium-Ion Brushless Cordless 1/4-inch Straight Die Grinder (2486-20)
• (1) Wrench

Milwaukee 2486-20 M12 FUEL 12V Brushless Straight 1/4″ Die Grinder – Tool Only Specifications

• GTIN: 00045242544370
• MFG Part#: 2486-20
• Voltage: 12V
• Motor Type: Brushless
• Collet Size: 1/4-inch
• RPM Range: Up to 20,000 RPM (3 speed settings)
• Tool Length: 10.1 in
• Tool Weight: 1.6 lb (tool only)
• Switch Type: Paddle with variable speed
• Battery Platform: Milwaukee M12 (batteries sold separately)
• Compatible Disc Size: 2″
• Power Source: Cordless
• Warranty: 5-Year Limited Tool Warranty
• Included: (1) M12 FUEL 1/4″ Straight Die Grinder (Tool Only), (1) Wrench

Milwaukee 2486-20 M12 FUEL 12V Brushless Straight 1/4″ Die Grinder – Tool Only Warranty

• Milwaukee’s 5 Year Limited Warranty

Why Tradespeople Choose the Milwaukee M12 FUEL 12V Brushless Straight 1/4″ Die Grinder

Tradespeople count on this die grinder because it saves time, cuts setup hassle, and gets jobs done anywhere. Whether you’re calling it a cordless die grinder, electric die grinder, or simply a straight grinder, this tool is a staple in toolboxes where reliability, speed, and control matter. It replaces air tools without compromising on torque, helping contractors and mechanics move faster and cleaner on every job. It’s built for working smarter, not harder—especially when you’re grinding in spots that your air line just can’t reach.