Part of a comprehensive range of freewheel & bottom bracket removal tools Oversized centre hole & thin wall design allows use without removal of cones & locknuts Investment cast & heat-treated for strength & durability One-inch base fits end of SR-1 FRW-1 Park tools or simply an adjustable wrench or bench vice High strength tool steel Fits 12-tooth internally-splined Record Chorus & Athena cartridge bottom brackets & Campagnolo cassette hub lockrings Compatible with 11-speed lockrings Made in the USA & covered by Park Tools legendary limited lifetime warranty