Wera Kraftform Plus 160i/168i/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 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