High quality bits with combination profile Phillips/slotted. In electrical applications screws with mixed geometry (slotted and Phillips cross-recess) are quite common. Bits having a PlusMinus profile are optimum for addressing these screws. Tough viscous for universal use. ¼“ hexagon, suitable for holders as per DIN ISO 1173-F 6.3. For PlusMinus screws (combination profile Phillips/slotted) Also for jobs on terminal blocks, fuse boxes, switches and relays Tough for hard materials 1/4” hexagon drive (Wera connecting series 4) Tough bits Tough Wera bits prevent the tip from breaking prematurely. Z-bits usually are the bit for universal screwdriving applications. Code mm inch mm 05059720001 # 1 70 2 3/4“ 4.5 05059721001 # 2 70 2 3/4” 6