The Siegen 40 Piece 3/8" and 1/2" Drive Torx, Spline and Hexagon Bit Set is a comprehensive socket bit collection designed for professional tradespeople and serious DIY enthusiasts. This versatile set provides essential Torx, hexagon and spline bits in two convenient lengths, making it ideal for automotive work, machinery maintenance and general mechanical repairs. Manufactured from chrome vanadium steel and hardened and tempered for enhanced durability, these bits are built to withstand the demands of regular professional use. The set includes both 3/8" and 1/2" square drive to 10mm hex adaptors, allowing seamless integration with your existing socket sets and power tools. Each bit profile is supplied in both 30mm and 75mm lengths, giving you the flexibility to access recessed fasteners or work in confined spaces. The comprehensive selection covers TRX-Star sizes from T20 to T55, hexagon bits from 4mm to 12mm, and spline bits from M5 to M12. All components are housed in a robust storage case for organised transport and easy identification on site. Part of the Siegen by Sealey range, this set combines quality construction with competitive pricing and is backed by a lifetime guarantee. Features and Benefits: • Chrome vanadium steel construction hardened and tempered for superior strength • Dual length bits (30mm and 75mm) for versatile access in different applications • Compatible with 3/8" and 1/2" square drive tools via included hex adaptors • Comprehensive bit selection covering most common fastener sizes • Organised storage case keeps bits protected and easily accessible • Lifetime guarantee for long-term peace of mind Specifications: Brand: Siegen Contents: TRX-Star* Bits; T20, T25, T30, T40, T45, T50, T55, (1 each 30 & 75mm), Hex Bits; 4, 5, 6, 7, 8, 10, 12mm (1 each 30 & 75mm), Spline Bits; M5, M6, M8, M10, M12 (1 each 30 & 75mm), Drive Adaptors; 3/8"Sq x 10mm Hex, 1/2"Sq x 10mm Hex Drive: 3/8" & 1/2"Sq Nett Weight: 1.56kg

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