Chiloskit 3pc Round Shank 5 Flutes 82 Degree Countersink Drill Bit Set Wood Metal Working Chamfer and Deburring Tool Cutting edge is sharp and smooth,high working efficiency. 100% brand new and high quality. Drilling or chamfering for wood plate or thin plastic plate. Suitable for hand drill, bench drill. Frequent quenching treatment, high hardness, sharp and smooth blade, magnetic shank.