Product Description The Bottom Bracket Socket Common Tool is an extremely precise machined tool for installing and removing bottom brackets. Specifications:Function:bottom bracket assembly/disassemblyCompatibility:Campagnolo, SRAM, FSA, Shimano (old)Drive Size:3/8"Technical Information:Material:aluminium (7075)Features:high-precision machinedaluminium-made, hard anodisedlaser engraved logos and torque recommendationcompatible with all outside bearing shells where the Bottom Bracket Socket Dual Sided tool does not fitManufacturer Number:BB-Std-Socket-SS-Com Contents:1 x Manufacturer: Abbey Bike Tools 295 SW Century Dr. Suite #201 Bend OR 97702 USA info@abbeybiketools.com Distributor: MERIDA & CENTURION Germany GmbH Blumenstraße 49-51 71106 Magstadt Germany vertrieb@merida-centurion.com