Irwin · Auger Drill Bits

Irwin Wood Auger Drill Bit 8mm 400mm

The Irwin IRW10502742 is a long series 8mm diameter auger drill bit with an extended 400mm overall length, perfectly suited for deep boring applications in construction and renovation work. This extended reach bit is essential for drilling through thick timber beams, multiple joists, deep post installations and electrical or plumbing runs where standard length bits fall short. Designed for all general wood boring, this long auger bit offers superior performance even when drilling to considerable depths. The single spur cutting edge scribes the circumference of the hole for a smoother quality finish along the entire bore, whilst the hexagon shank prevents slipping in drill chucks or bit extensions, maintaining secure drive throughout extended drilling operations. The solid centre provides extra rigidity whilst boring, which is absolutely critical for longer bits to prevent deflection and maintain hole accuracy. The self-feeding screw point provides faster boring in both soft and hard woods whilst keeping the bit on track, and the fully hardened body from tip to shank provides extra durability under the demanding conditions of deep hole drilling. Features and Benefits: • 8mm diameter with 400mm length for deep boring in construction work • Long series design essential for thick beam and joist drilling • Single spur cutting edge maintains quality throughout deep holes • Solid centre critical for accuracy in extended length applications • Self-feeding screw point reduces operator effort at depth • Fully hardened body ensures reliability in demanding applications Specifications: Diameter (mm): 8 Overall Length (mm): 400 Working Length (mm): 323 Pack Qty.: 1

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