5Pcs Degree Drill Bit Set Single Flute Titanium Countersink Wood 82 Round Shank Chamfer Metric(6/10/13/16/19mm ) Great for Sinking 82 Degree Holes into Wood and Soft Metals Countersunk Screws and Fixings. Suitable for DIY, Home and General Building/Engineering Using Cuts through steel, sheet metal and other surfaces with only a small amount of pressure and deburrs as you drill Drill Bit Set includes 5 quick change drill bits coated with Titanium for added strength and longevity Locks easily into in hex sleeves and quick release chucks and fits all power drills Suitable for low hardness of the workpiec, for home repairs and light jobs such as drilling into wallboard or hanging pictures and mirrors