Part of a comprehensive range of freewheel and bottom bracket removal toolsOversized centre hole and thin wall design allows use without removal of cones and locknutsInvestment cast and heat-treated for strength and durabilityOne-inch base fits end of SR-1 FRW-1 Park tools or simply an adjustable wrench or bench viceHigh strength tool steelFits 12-tooth internally-splined Record Chorus and Athena cartridge bottom brackets and Campagnolo cassette hub lockringsCompatible with 11-speed lockringsMade in the USA and covered by Park Tool's legendary limited lifetime warranty