Changeover blade with reduced blade diameter and integrated safety insulation, to reach and turn deep-set screws and spring elements. Combination profile slotted/Phillips, particularly suitable for terminal blocks, fuse boxes, switches and relays. Individually tested tool in accordance with IEC 60900. Individually tested at 10,000 V for safe working at the permissible voltage of 1,000 V. The Wera Black Point tip offers high fitting accuracy and additional corrosion protection.