The Snap-on 2-pc Bumper Cover Bolt Socket Set (No. 102STMML), a must have specialty tool for body shop technicians, was designed to meet the requests from customers working on bumpers. The set includes a 1/4" drive, six point 10mm socket and a 1/4" drive, six point 11mm socket. The 10 and 11mm are the most popular fastener sizes for bumper cover bolts found on most European, Asian and domestic vehicles. Each socket is 4" long and the length of the socket is critical for the application. Offers a Flank Drive wrenching configuration where socket grips the fastener on the flanks/flats to increase torque.