Tools with verified quality
Unior Hand tools are in compliance with the European and global quality standards. Unior is striving to assure the high quality of hand tools also as a fully authorized CEO (European Tools Committee) member.
Unior was among the first manufacturers of hand tools in Europe to receive ISO 9001 quality certificate. In 1994, the company received ISO 9001 quality certificate for the development, production and marketing of hand tools, sheet metal housing for hand tools and mechanical processing of forging parts.
Unior tools are in compliance with DIN standard. Since 1991, the tools for working at high voltage also proudly hold VDE certificate, issued by VDE Institute- "Pruf und Zertifizierungsinstitut" from Offenbach in Germany.

Open Bottom Bracket Wrench 16 Notch
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. 

Material: special tool steel, hardened and tempered 
Surface finish: chrome plated according to ISO 1456:2009