# Output The Siegen 171 Piece Combination Drive Socket and Screwdriver Bit Set is a comprehensive workshop solution designed for professional tradespeople and serious DIY enthusiasts. Manufactured from hardened and heat-treated Chrome Vanadium steel with a fully polished mirror finish, this extensive socket set delivers the durability and precision demanded by mechanics, engineers and maintenance professionals. This versatile set covers all three standard drive sizes – 1/4″, 3/8″ and 1/2″ square drive – providing exceptional flexibility across different applications. The socket range spans from 4mm through to 32mm, offering comprehensive coverage for automotive work, general engineering tasks and equipment maintenance. Three 72-tooth comfort grip ratchet wrenches ensure smooth operation with minimal swing arc, ideal for working in confined spaces. The set includes an extensive array of specialist accessories to tackle virtually any fastening challenge. Deep sockets provide access to recessed fixings, whilst female TRX-Star sockets (E4 through to E24) handle security fasteners commonly found on modern vehicles and equipment. Spark plug sockets in multiple sizes cater specifically for automotive servicing, and the comprehensive bit selection encompasses slotted, Phillips, Pozi, Torx, security Torx, hex and square drive types across three different bit shank sizes. Extension bars ranging from 50mm to 250mm enable access to awkward locations, whilst universal joints, hex adaptors, a spinner handle and sliding T-bar enhance versatility. The inclusion of metric hex keys from 1.27mm to 5mm further extends the set’s capabilities. All components are organised in a tough, durable storage case with designated compartments for efficient tool management and transport between job sites. Features and Benefits: • Chrome Vanadium steel construction with heat treatment for long-lasting durability • Three 72-tooth ratchet wrenches provide fine indexing for restricted access • Comprehensive socket coverage from 4mm to 32mm across three drive sizes • Extensive bit selection including security Torx for specialist applications • Mirror polished finish resists corrosion and aids cleaning • Organised storage case keeps tools secure and easily accessible Specifications: Brand: Siegen Drive: 1/4″, 3/8″ & 1/2″Sq Standard Sockets: 1/4″Sq Drive; 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13, 14mm, 3/8″Sq Drive; 10, 11, 12, 13, 14, 15, 16, 17, 18, 19mm, 1/2″Sq Drive; 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 27, 30, 32mm Deep Sockets: 1/4″Sq Drive; 4, 5, 6, 7, 8, 9, 10mm, 3/8″Sq Drive; 10, 11, 12, 13, 14, 15mm, 1/2″Sq Drive; 16, 17, 18, 19, 22mm Female TRX-Star* Sockets: 1/4″Sq Drive; E4, E5, E6, E7, E8, 3/8″Sq Drive; E10, E11, E12, E14, E16, E18, 1/2″Sq Drive; E20, E24 30pc 1/4″Sq Drive Socket Bits: Slotted; 4, 5.5, 6.5, 7mm, Phillips; #0, #1, #2, Pozi; #0, #1, #2, Hex; 3, 4, 5, 6mm, TRX-Star*; T8, T9, T10, T15, T20, T25, T27, T30, Security TRX-Star*; T8H, T9H, T10H, T15H, T20H, T25H, T27H, T30H Accessories: 1/4″Sq Drive; Extension Bars – 50, 100mm, Universal Joint, Sliding T-Bar, Spinner Handle, 1/4″ Hex Adaptor, 150mm 3/8″Sq Drive Extension Bar, Spark Plug Socket; 18mm, Universal Joint, 8mm Hex Adaptor, 1/2″Sq Drive; Extension Bars – 125, 250mm, Spark Plug Sockets; 16, 21mm, Universal Joint, 10mm Hex Adaptor, T-Bar Adaptor 20pc 1/4″ Hex Bits: Slotted; 6-8, 8-10 (x2), 10-12mm, Phillips; #0, #1, #2, #3, Pozi; #1, #2, #3, TRX*Star; T10, T15, T20, T25, T27, T30, Square; S1, S2, S3 18pc 8mm Hex Bits 30mm: Slotted; 8, 10, 12mm, Phillips; #3, #4 Pozi; #3, #4, Hex; 7, 8, 10, 12, 14mm; TRX*Star; T40, T45, T50, TRX*Star Security; T40H, T45H, T50H Hex Keys: 1.27, 1.5, 2, 2.5, 3, 4, 5mm