With the Lewis universal auger drill bit, Heller has the ideal solution available for drilling through beams and rafters. The self-sinking thread tip enables precise drilling and, thanks to the sharp cutting edges, guarantees high drilling performance. The pre- and main cutter are hardened so that users can expect a long service life. Another advantage: The Lewis helix offers proven fast chip removal. Features Self-sinking thread tip for on the spot drilling Excellent drilling progress thanks to extra sharp cutter tip Hardened pre- and main cutter ensures a long service life and maximum stability Lewis helix proven for fastest chip removal Ideal for cordless drills, too Specification Shank - Hex Diameter - 10mm Length - 450mm Standard Equipment 1x Heller Auger Drill Bit 10 x 450mm KINDLY REMINDER: Delivery to the UK Highlands, Channel Islands, Northern Ireland, Isle Of Wight, Isle Of Man and the following postal code areas: BT, FK, KA (1-30), PA(1-49), PA(60-78),PA80, PH, PH(11-40), PH(41-44), PH(49-50), AB, IV, KW, ZE, GY(1-10), JE(1-5), PO(30-41), IM, IR, HS are excluded from our standard delivery charge and may incur extra costs.