The 1609/2BI bottom bracket wrench is used to remove and install Shimano® Hollowtech II, Campagnolo Ultra-Torque and Power Torque, Race Face, FSA, SRAM, Truvativ, Chris King bottom brackets as well as many and others. The 1609/2HOBBY wrench also fits on the external centerlock disc nut
Tool also fits the disc brake rotor nuts with 16 external notches
Small wrench 1609.1/2 is included for removal and installation of Shimano plastic bolts that are used on the Hollowtech II cranksets.
Surface finish: chrome plated according to EN12540
Material: special tool steel, hardened and tempered