Sunex International 2662 1/2" Dr. Deep Universal 12 POINT Metric Impact Socket Set, 15 pc. CR-MO alloy steel for long life Lifetime warranty Heavy duty blow molded storage case 12 Point sockets offer double the starting points as 6 point sockets Metric - mm: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24