Ring spanner insert 7771 9x12 8mm

Wera's loop key-shaped interchangeable head. Designed for Click-Torque X series torque wrenches.

- Interchangeable heads = mm
- For internal square size 9 x 12
- With safety pin
- Thanks to the chromium-vanadium steel, the insert tool can handle high loads
- Application: Hexagonal bolts and nuts