Trend IT/2014127 201 BK dowel drill two flute 7mm diameterHollow ground flutes 57.5mm overall lng. left handTungsten carbide tipped dowel drill with centre point and two spurs. Hollow Ground flutes help reduce tear-out. Suitable for drilling blind holes in natural wood and man-made boards (including paper/plastic coated and veneered). Drills have a cylindrical shank with flat and lng. adjusting screw. For use on automatic and point-to-point boring machines.Specification-D=7 mmCut lng.=30 mmOverall lng.=57.5 mmShank Diameter=10x20 mmRotation=Left hand