ISO 691 - ISO 1711-1

Return angle 5°.

12-point polygonal head forged at 15°.

Direction change with built-in reversible mechanism.

German end at a 15° angle relative to the torque application point (return angle 30°).

Polygonal end profile designed to maximize the contact surface with the nut for increased durability.

Forged from chrome vanadium steel.

Finish: chrome, polished.