This Draper 1/2\" square drive VDE socket set is ideal for electrical work The Draper 31070 is a 1/2\" square drive VDE socket set. It is made from chrome vanadium steel hardened, tempered and chrome plated. Each component has been tested to 10,000V for safe 1000V AC or 1500V DC live working. The set is packed in a tough plastic storage case. Features: Expert Quality, chrome vanadium steel hardened, tempered and chrome plated Each component has been tested to 10,000V for safe 1000V AC or 1500V DC live working Packed in tough plastic storage case Comes with: 20 x Fully insulated sockets: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 27, 29, 30, 32mm 1 x Fully insulated reversible ratchet with quick-release button 1 x Fully insulated extension bars: 75, 125, 250mm. Specification: Pack Qty: 24 piece