Stanley Proto J6018RK 3/4-Inch Drive Ratchet Head Repair Kit - Torque Wrench 1/4-inch to 1-inch ratchet wheels made from alloy steel for uncompromising strength and durability Field repair your torque wrench ratchet head easily with the corresponding repair kit 3/4-inch Drive size Use with:J6018AB, J6018CX, J6018CXCERT, J6020AB, J6020CX, J6020CXCERT, J6020NM