1. Specially designed for removing and installing bicycle cranks.
2. Compatible with Shimano HollowTech XT XTR R series cranks.
3. Built-in magnet, easy to store, and can be easily absorbed on the metal tool rack. Not easy to lose. Using aluminum alloy, high hardness and long service life.
4. It needs to be used with 6mm Allen wrench.
5. After updating from the old type, the teeth are the same as the Torx screw, which is harmless to the screw or other accessories.