Forged from the highest quality chrome molybdenum alloy steel for long life. Packaged in compact blow molded case for durable, convenient storage and transport. Fully guaranteed Set includes: SAE - 3/16, 7/32, 1/4, 5/16 (8mm), 3/8, 7/16 and 1/2; Metric - 4mm, 5mm, 6mm, 7mm, 10mm and 12mm.
