Stepped sheet metal drill bit with spiral flute TiN 4 - 20 mm

Step drill bit, universal Design: HSS, according to works standard, with helical groove. The 3-sided shank prevents the tool from slipping in the drill chuck.With laser marking of bore diameter and speed.The bore diameter can also be read on a rotating tool.Application: for burr-free drilling and boring of sheet metal, pipes and profiles up to 6 mm thick.Deburring of materials up to 1.5 mm thick.Work without burrs and notches, can be used with handheld or column drills.They do not require scoring.Note: Drilling paste is recommended for longer tool life.Drill steps diameter mm: 4, 6, 8, 10, 12, 14, 16, 18, 20