The Milwaukee Tool M12 FUEL 1/4" 3/8", and 1/2" Extended Reach Ratchets, Nos. 3055-20, 3059-21, and 3058-21, are designed for professional service technicians working in underhood, undercarriage, and interior applications. Featuring a slim, compact head profile with an extended neck length, these ratchets allow users to reach deeper into the engine bay while maintaining the control and speed. The 1/4" ratchet works at 550 rpm for rapid fastener removal and installation. The 3/8" and 1/2" ratchets operate 400 and 300 rpm respecitively. The ratchets are compatible with the M12 FUEL Ratchet Modular Trigger Cap Kit. The 1/2" ratchet features up to 80 ft-lbs of maximum torque, the 3/8" offers 70 ft-lbs, and the 1/4" offers 45 ft-lbs