Professional tool for commercial or occasional use. Metric sockets shallow and deep. Manufactured from chrome vanadium steel for strength and durability. 1/4" ratchet has 72 teeth which allows for a fine tooth gearing. All sockets whether shallow or deep have a knurled ring for better grip in oily conditions as well as a mirror polish which keeps them corrosion resistant and durable. 6 point hex sockets Set Includes 1/4" DRIVE 6 SIDED METRIC SHALLOW SOCKETS 4mm / 5mm / 6mm / 7mm / 8mm / 9mm / 10mm / 12mm / 13mm. 1/4" DRIVE 6 SIDED METRIC DEEP SOCKETS 4mm / 5mm / 6mm / 7mm / 8mm / 9mm / 10mm / 12mm and 13mm 1/4" DRIVE SPINNER HANDLE 2, 1/4" DRIVE EXTENSION BARS 2" (50mm) / 6" (150mm) 1/4" drive universal joint 1/4" Drive quick release reversible ratchet (72 teeth / total length 145mm) Complete in metal storage case.