The BOSTITCH BTHT72274 21pc Non-Ratcheting T Handle Set has a heavy duty T-Handle that delivers up to 400 in-lbs of max torque. This tool is contoured, and ergonomically designed to provide a comfortable secure grip. The interchangeable T-Handle accepts 1/4" drive bits and allows for quick and easy bit changes. The large variety of bits fit many applications. It also comes with a compact and convenient blow molded case for easy storage.