Sunex 3659 3/8-Inch Drive Metric Universal Hex Bit Driver Impact Socket Set CR-MO alloy steel for long life Packed in blow molded case for convenience 3/8-Inch Drive 7-Piece Universal hex metric impact socket set Fully guaranteed Set includes sizes in metric mm: 4mm, 5mm, 6mm, 7mm, 8mm, 10mm, 12mm