Professional socket set manufactured from hardened and heat treated Chrome Vanadium steel. Fully polished with a mirror finish. Covers sizes from 4 to 32mm. Includes 72-tooth comfort grip ratchet wrenches, spark plug sockets, extension bars, socket bits, spinner handle and accessories. Supplied in tough, durable storage case.Contents: 1/4"Sq Drive Standard Sockets; 4-14mm, 1/4"Sq Drive Deep Sockets; 4-10mm, 1/4"Sq Drive Female TRX-Star* Sockets; E4-E8, 1/4"Sq Drive Socket Bits; Slotted - 4, 5.5, 6.5, 7mm, Phillips - #0, #1, #2, Pozi - #0, #1, #2, TRX-Star* - T8-30, Security TRX-Star* - T8H-T30H, Hex - 3, 4, 5, 6mm, 1/4"Sq Drive Extension Bars; 50, 100mm, 1/4"Sq Drive Ratchet Wrench, 3/8"Sq Drive Standard Sockets; 10-19mm, 3/8"Sq Drive Deep Sockets; 10-15mm, 3/8"Sq Drive 18mm Spark Plug Socket, 3/8"Sq Drive Female TRX-Star* Sockets; E10-E18, 150mm 3/8"Sq Drive Extension Bar, 3/8"Sq Drive Ratchet Wrench, 1/2"Sq Drive Standard Sockets; 10-32mm, 1/2"Sq Drive Deep Sockets; 16-22mm, 1/2"Sq D