M18 FUEL 4-1/2"-6" Braking Grinder with Paddle Switch - Milwaukee Electric Tools

The Milwaukee Electric Tools M18 FUEL 4-1/2"-6" Braking Grinder with Paddle Switch (model 3670-20) delivers performance comparable to a 13A corded grinder within the M18™ FUEL™ cordless system. Engineered for professional automotive, fabrication, and industrial environments, this tool provides powerful grinding and cutting capabilities alongside integrated safety features.

Key Features

• Versatile Wheel Capacity: This grinder accommodates wheel sizes from 4-1/2" to 6", allowing a single tool to be utilized across a variety of grinding, cutting, and material removal applications, from precision work to aggressive material shaping.
• RAPIDSTOP™ Braking System: For enhanced safety and increased productivity, the RAPIDSTOP™ Braking system stops the wheel in under two seconds upon trigger release. This feature is particularly relevant when working near sensitive vehicle components or during wheel changes.
• Paddle Switch Design: The paddle switch design offers precise control and a secure grip, making the tool suitable for overhead applications, undercar service, and maneuvering in confined spaces around vehicle frames or suspension. Its no-lock design contributes to user comfort.
• POWERSTATE™ Brushless Motor: The integrated POWERSTATE™ Brushless Motor delivers a sustained 9,000 RPM, preventing bogging down during demanding tasks such as heavy grinding, weld cleanup, and cutting through thick steel.
• REDLINK PLUS™ Intelligence: This system incorporates advanced hardware and software to provide thermal and overload monitoring, protecting both the tool and its battery for reliable performance in high-demand environments.
• Kickback Protection: The grinder features an electronic clutch designed to offer kickback protection, and an anti-vibration side handle is included to reduce user fatigue during operation.

Applications

This Milwaukee M18 FUEL braking grinder is well-suited for professional automotive and truck repair, metal fabrication, and plant maintenance. Specific applications include grinding welds on vehicle frames and control arms, cutting exhaust systems and rebar, trimming brackets and plate steel, and preparing surfaces prior to welding or coating. The cordless design offers operational flexibility for use on lifts, in busy service bays where trip hazards are a concern, and for mobile mechanics or field service technicians.

Specifications

• Model: 3670-20
• Wheel Size Range: 4-1/2" to 6"
• RPM: 9,000
• Spindle Size: 5/8"-11
• Weight (bare tool): 5.3 lbs
• Dimensions (L x H x W): 14.75" x 4.5" x 3"
• Platform: M18™ FUEL™ cordless system