The Wiha 21 Piece VDE Insulated 1/2" Drive Socket Set is a professionally certified tool set designed for safe electrical installation work on live parts up to 1,000 V AC. Each individual tool in this comprehensive set is tested to the international IEC 60900 standard, making it ideal for electricians and electrical contractors working with terminals, sleeves, conductor connections and fastening conductor lines. The set features a practical quick-change system where nut drivers and extensions are mechanically locked, with changes initiated by pressing the activation button once. This allows for efficient transitions between tasks without compromising safety. The insulated ratchet wrench includes an integrated switching lever for effortless directional changes, whilst the included T-handle provides additional leverage for stubborn fixings. Supplied in a robust storage case for organised tool management, this 21-piece set includes everything needed for comprehensive electrical work. The collection comprises a 1/2" insulated ratchet wrench, a 1/2" insulated T-handle, and two insulated extensions (125mm and 250mm). Socket coverage is extensive with eleven 55mm inserts ranging from 10.0mm to 32.0mm, plus five 120mm inserts covering smaller sizes from 4.0mm to 10.0mm. Features and Benefits: • VDE certified to IEC 60900 standard for safe working on live parts up to 1,000 V AC • Mechanical locking system with push-button activation for secure, quick tool changes • Comprehensive 16-piece socket selection covering 4.0mm to 32.0mm applications • Integrated switching lever on ratchet for effortless direction changes • Practical storage case keeps tools organised and protected Specifications: Type: Socket Set