Precision ground, hardened high carbon steel auger bits. Fine pitch spiral pulls auger into the workpiece and single spur slices timber ahead of cutting edge, producing accurate holes. 100mm long, for drilling in restricted spaces. Hex shank. Sizes 10, 13, 19, 22 and 25mm. Precision ground, hardened high carbon steel auger bits. Fine pitch spiral pulls auger into the workpiece and single spur slices timber ahead of cutting edge, producing accurate holes. 100mm long, for drilling in restricted spaces. Hex shank. Sizes 10, 13, 19, 22 and 25mm.