Wiha’s SYSTEM 6 offers many advantages over individual nut drivers. Not least is the space saving in your toolbox. A single SoftFinish handle with seven blades in a neat tool roll takes makes it far easier to find and select the size required. The blades have 6mm hexagonal shanks, a ClickStop ball clamp in the handle guarantees a firm grip on the blade and a quick change. The dimples along the shanks allow adjustment in blade length. The blades are chrome-vanadium-molybdenum steel, through hardened for a long service life. The sizes are 5.0, 5.5, 6.0, 7.0, 8.0, 10.0 and 13mm.