Wera Tools - 8740 B VDE HF Zyklop Hex bit socket, insulated, with holding function, 3/8" driveVDE "" bit socket with holding function for particularly comfortable screwdriving with reduced risk of screw loss when feeding to the component. With increased safety due to yellow insulation core, which becomes visible in case of damage to the outer red VDE insulation layer. Individually tested tool as per IEC 60900 at 10,000 V for safe working at the approved voltage of 1,000 V. Features Individually tested tool as per IEC 60900 at 10,000 V for safe