Features and Benefits: Form-fitting, lightweight design protects the tool and work surface while adding minimal size or weight to the tool Flexible material allows for easy install and removal Durable proprietary rubber designed to withstand corrosive materials commonly found in maintenance environments Made for the M12 FUEL 3/8" Ratchet (2557-20) The Milwaukee 49-16-2557 tool boot is for use with Milwaukee M12 FUEL 3/8" Ratchet (2557-20) only. This product provides a lightweight, durable solution that is meant to protect the tool and work surface. A durable rubber design will withstand corrosive materials commonly found in maintenance environments. Not for use on or near live electrical circuits. Use on any other product may result in damage to tool motor and may void tool warranty.