Product Description Sprocket work made easy: the FR-6 Cassette Remover by ParkTool Hardened steel cassette remover with solid 1" base for removal lever or vice. The thin-walled design allows use without first removing the cone or lock nut. Compatibility:for BMX freehubs, 4 notchesfor 14 mm oversized axlesBMX and singlespeed freewheels with a 1.37x24 TPI hub thread pitchFeatures:4 cams40 mm diameterManufacturer Number: FR-6 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