The open 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
Surface finish: chrome plated according to EN12540
Material: special tool steel, hardened and tempered
D1=21,35mm | D2=22,5mm | L=310mm | A=3mm | R=1,5mm