The Proxxon 1/4" square drive socket set with 36 pieces for Precision Engineers. The 13 sockets cover the range from 4 to 13 mm. The design of the industrial quality ratchet has been tried and tested 100,000 times to a high level of torque so quality is assured. Twelve screwdriver inserts with 1/4" square drive are included, covering for slotted, Philips, Torx and Hex headed screws. The set includes a 1/4" square drive screwdriver handle, two extensions, a universal joint and a T-adaptor. There are also five hex keys 1.25, 1.5, 2.0, 2.5 and 3mm, all supplied in a robust powder coated steel box.