Trend IT/2016157 201 BK thru drill 5 mm diameter70mm 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=5 mmCut lng.=40 mmOverall lng.=70 mmShank Diameter=10x25 mmRotation=Left hand