Wera Kraftform Plus 160i/6 Insulated Professional Screwdriver Set, 6-Piece Features Lasertip Slotted and Phillips drive tips and rack Each screwdriver is tested at 10,000 volts in a water bath to guarantee safe working standards of 1000 Volts Lasertip micro-rough drive tip bites into the fastener to ensure a perfect fit and reduce cam-out effect Multi-component Kraftform handle fits the shape to the hand for the ultimate in comfort and high speed torque transfer Limited Lifetime Warranty, German Engineered