- For spanner screws
- Tough for hard materials
- 1/4 hexagon drive (Wera connecting series 4)
Application:Spanner screws
Drive:1/4 hexagon. suitable for DIN ISO 1173-F 6.3 bit holders
Design:Tough. for universal use
Includes:
- 857/4 Z Spanner bits. 10 x 89 mm

