Ø12mm This Lockring Socket features a Ø12mm center pin for thru-axle hubs and is compatible with Shimano® HG™ & SRAM® Cassettes, Shimano® Center Lock, or other similar 12-spline Ø23.4mm lockrings.The socket is of 1/2" Dr. and can be used alongside Birzman's Torque Wrench 10-60Nm (bi-directional) (BM18-TW-10-60NM). Ø5mm This Lockring Socket features a Ø5mm center pin and is compatible with Shimano® HG™ & SRAM® Cassettes, Shimano® Center Lock, or other similar 12-spline Ø23.4mm lockrings.The socket is of 1/2" Dr. and can be used alongside Birzman's Torque Wrench 10-60Nm (bi-directional) (BM18-TW-10-60NM). Additional Info Country of Origin: Taiwan Imported By: Sign In Retails , Plot-16 , Sector-33 , Gurgaon - 12201. Haryana , India. Net Quantity: 1N Customer Care Address: 291, 10 Main, 5 Block, Jayanagar, Bangalore - 560041. Ph: (080)47183232, Email: [email protected] Commodity: Cassette Tools