Milwaukee M18 Fuel 1/4" Lockbolt Tool with One-Key

The Milwaukee Lockbolt Tool with ONE-KEY™ (2661-20) is the industry’s first cordless lockbolt and Huck bolt installation tool, designed for maximum productivity and unmatched control. Powered by the M18 FUEL™ brushless motor and REDLINK PLUS™ intelligence, it delivers the performance of pneumatic systems without hoses or compressors. Engineered for professional use in heavy equipment, trailers, rail, and structural steel applications, this lockbolt tool provides up to 2X faster installation with consistent, secure fastening every time. The ONE-KEY™ integration allows for tracking, management, and tool security through the Milwaukee app — giving you total visibility and control on the job site. With its ergonomic design, dual trigger operation, and advanced pull force, the M18 FUEL™ Lockbolt Tool ensures reliable installation of 1/4" lockbolts while reducing fatigue and downtime.

• Cordless Power, Pneumatic Performance



Eliminates air hoses and compressors while delivering comparable speed and strength.



• M18 FUEL™ Brushless Motor



Provides maximum fastening speed and consistent pull performance across applications.



• ONE-KEY™ Technology



Track, manage, and secure your tool digitally through the Milwaukee ONE-KEY™ app.



• Advanced Pull Capacity



Engineered to install 1/4" lockbolts and Huck bolts quickly and accurately.



• Dual Trigger Design



Enhances control and comfort during repetitive fastening tasks.



• Ergonomic, Durable Build



Lightweight magnesium housing withstands harsh jobsite conditions.



• LED Work Light



Brightens work areas for improved accuracy in low-light environments.



• Part of the M18™ System



Compatible with over 250+ M18™ tools and batteries.