Park Tool SBS-1.2 Bike Workshop Socket & Bit Set New No Outer Carton PK-348-U11
1" socket: fits many Park Tool freewheel, cassette lockring, and bottom bracket tools including FR-1.3, FR-5.2, and BBT-22. All sockets and bits are 3/8" drive and ideal for use with a torque wrench, ratchet handle, or breaker bar.