Lasertip micro-rough drive tips bite into the fastener to ensure a perfect fit and reduce cam-out effect. Torx® with borehole to prevent the unauthorized unfastening of safety screws. All Wera hand tools feature the trademarked ergonomic Kraftform handle, with hard and soft zones, that fits the shape to the hand for the ultimate in comfort and high-speed torque transfer. Handle marking on top of handle includes screw symbol and size of tip to easily find the right screwdriver in your toolbox or workplace. Anti-roll protection at base of handle stops screwdrivers from rolling away at workplace.