This Stanley Fatmax Bit Adaptor is constructed from heavy-duty carbon silicon steel for added strength, performance, and longer product life. It has a large soft-grip, tri-material ergonomic handle designed to reduce fatigue and increase comfort in repetitive applications.Its narrow waist and smooth, domed end deliver excellent torque, speed, control and ease-of-use in challenging fastening or loosening applications, ideal for driving wood screws. Tethering hole integrated into the handle, ensuring tools are never mislaid or dropped, and delivering additional safety for users when working at heights. Specification: Length: 125mm. .