Wiha System 4 Drive-Loc Series

Wiha's Drive-Loc systems introduce a great feature to help you get more out of your tools. The Drive-Loc system allows you to change the length of your screwdriver blade to make it as long - or as short as you need for a job. The Drive-Loc locks into place incrementally with spherical dimples for a precise length. Drive-Loc blades are double-sided hex-blades and the Drive-Loc 4 is equivalent to a 4mm bit and is intended to function as precision tool version of the Drive-Loc.