Wera Tools - 334/355 SK/6 Screwdriver set Kraftform Plus Lasertip and rack6 piece screwdriver set with Kraftform Plus handle for pleasant, ergonomic working that makes blisters and calluses a thing of the past. Hard gripping zones for high working speeds whereas soft zones ensure high torque transfer. The Lasertip tip literally bites into the head of the screw and thereby prevents any slipping. More torque can be transferred with the help of an open end or ring spanner applied to the hexagonal blade and the integrated