The Proxxon (23070) 39-piece 1/4" square drive screwdriver and socket set, contains both sockets and screwdriver tips to cover a host of tasks. Twelve sockets cover the range 4 to 14mm for nuts and bolts. Whilst the 1/4" hex screwdriver tips include slotted, Philips, Torx and hex head options. The powder coated steel box also contains a 1/4" ratchet, 1/4" square drive screwdriver handle, 100mm extension, a square drive to hex adaptor, magnetic bit holder, 1/4" square drive bits holder and five hex keys 1.25 to 3mm.