Sunex 3330 3/8-Inch Drive 12-Point Metric Impact Socket Set, 29-Piece 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 - 14-12 POINT STANDARD SOCKETS: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22 - 14-12 POINT DEEP SOCKETS: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, Universal Joint