Self-sinking drill bits for all woods.
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. The Lewis universal auger drill bit is available with a SDS-plus and HEX shank.
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
Drilling without impact in gas concrete, hard-fired tiles, fiber cement boards, light sand-lime brick, wall tiles.