Shimano TL-FC21 Chainring nut wrench

Chainring nut wrench to hold chainring nuts in place while you open the chainring bolts with an allen key.

Features

• 133mm over all length for better leverage (30mm longer than the previous model TL-FC20)
• Can be also used as 9mm and 10mm wrench
• Hardened steel for rigidity and durability

Usage

• 3 claw end - Holds the slotted chain ring fixing nut securely during the installation and removal of the chain ring
• 2 claw end - For installation and removal of the one key release crank cap