The Sealey 5 Piece 1/2" Drive Socket Extension Bar Set delivers professional-grade reach and versatility for mechanics and automotive technicians working with socket sets. Manufactured from forged Chrome Vanadium steel, these extension bars are heat treated for enhanced durability and finished with a mirror-finish chrome plating that resists corrosion. The comprehensive set includes five essential lengths—50mm, 125mm, 250mm, 375mm, and 500mm—providing the flexibility to access fasteners in confined spaces or reach deeply recessed fixings across a wide range of mechanical tasks. Deep knurling machined into the shafts delivers extra grip when spinning off fixings by hand, allowing faster component removal without the need for constant ratchet engagement. Spring-ball socket retainers ensure secure socket attachment during use, reducing the risk of dropped sockets in awkward working positions. This professional-quality set is ideal for automotive servicing, plant maintenance, and general mechanical repair work where varying reach is essential. Features and Benefits: • Forged Chrome Vanadium steel construction with heat treatment for superior strength • Five length options from 50mm to 500mm for comprehensive reach capability • Deep knurled shafts provide enhanced grip for hand-spinning fasteners • Spring-ball socket retainers hold sockets securely during operation • Mirror-finish chrome plating offers corrosion resistance and easy cleaning • Backed by a lifetime guarantee for long-term reliability Specifications: Brand: Premier Drive: 1/2"Sq Length: 50, 125, 250, 375, 500mm Material: Chrome Vanadium Nett Weight: 2.13kg