High quality wera screwdriver set for torx socket screws with holding function the conical driving flanks that taper toward the tip of the tool the optimised flank base and the ideal engage depth hold the screw securely on the blade multi component kraftform plus handle for a high working speed and ergonomic screwdriving without blisters and calluses hard materials to ensure rapid hand repositioning without any danger of the skin sticking to the handle soft zones ensure high torque transf