Product Description Specifications:Function:installation & removal of bottom bracketsTool Type:Special tool, socketType:multi-toothDrive:Square 3/8"Compatibility:SRAM BSA DUB, Race Face Cinch, Rotor BSA 30, Zipp Vuma, Hawk Racing BB3086Size:12 notches; outer diameter 45 - 47 mm, inner diameter 44 mmTechnical Information:Material:aluminiumFeatures:Bottom bracket tool for bearing cups with 12 notches and 46 mm outer diameter, e.g. SRAM BSA DUB, Race Face Cinch, Rotor BSA 30, Zipp Vuma, Hawk Racing BB3086CNC precision-machinedanodised and laser engraved for easy identificationcompatible with ParkTool BBT-RS tool holding systemManufacturer Number:BBT-79.3 Contents:1 x ParkTool BBT-79.3 bottom bracket toolOrder Together:Optional accessories: BBT-RS Bottom Bracket Tool Retention System Manufacturer: Park Tool Company 1185 Eagle Lake Rd Shoreview MN 55126 USA info@parktool.com Distributor: GROFA Action Sports GmbH Otto-Hahn-Straße 17 65520 Bad Camberg Germany info@grofa.com