Irwin 1890711 Installer Bit, 1/2 In Dia, 18 In Oal, Spiral Flute, 1-flute, 0.37 In Dia Shank, Cylinder Shank

Irwin Straight Shank Wood Installer Bits feature a For installing all types of small wire in homes, offices, garages, etc.18 in. lengthSpecial 82 degree point for fast boringHole in flute (head) makes it easy to pull wires through hole in wallBoring action is faster, smoother, cleaner in plaster, metal lath, most every material encountered in wiring installationsSpecial flute finishing process assures quick chip removal, no clogging, no bindingLonger flute section for deeper boringMade of premium quality 100 carbon bearing steelRegular head typeElectric drill shank