6.0mm Hex (Allen) Balldriver Degree T-Handle Wrench, Protanium Degree High Torque Steel With Proguard Degree Finish 10.5" Long - Bondhus Degree USA. Bondhus ball end T-handle in 6mm combines an ergonomic solid steel handle with a precision ball end that works up to a 25 degree angle for faster fastening in socket head screws.