Shimano TL-FC21 Crankset Dustcap Pin Tool with Chainring Nut Tool. Shimano Crankset Dustcap Pin Tool with Chainring Nut Wrench.

3 claw end - Holds the slotted chainring fixing nut securely during the installation and removal of the chainring

2 claw end - For installation and removal of the one key release crank cap

133 mm over all length for better leverage

Can be also used as 9 mm and 10 mm wrench

Hardened steel for rigidity and durability