Product Description Specifications:Function:assembly of headset bearings, assembly of bottom bracketsType:special toolCompatibility:Headset: 1" - 1.5" Bottom Bracket: PF41 (BB86, BB92)PF42 (BB30, OSBB)PF46 (PF30)Trek BB90 & BB95bottom bracket shells of one-piece crank systemsManufacturer Number:HHP-3 Contents:1 x 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