Trend IT/2016277 201 BK thru drill 6 mm diameter77mm overall lng. left handTungsten carbide tipped dowel drill with V point . Suitable for drilling tear free through 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=6 mmCut lng.=45 mmOverall lng.=77 mmShank Diameter=10x25 mmRotation=Left hand