Pcs Countersink Chamfer Deburr HSS Conical Drill Bit for Drilling Metal Wood Plastic

Product DescriptionSize (chamfer size x length)2-5mm(2-5mm x 45mm)5-10mm(5-10mm x 47mm)10-15mm(10-15mm x 62mm)15-20mm(15mm-20mm x 82mm)Product DetailsThis 90° titanium coated chamfer tool is suitable for chip removal and prevents metal shavings from flying out and rounding shanks.Wide range of applicationsSuitable for artifacts under 25 years old, such as thin boards, such as wood, PVC boards, aluminum sheets, insulation plates or thin plastic sheets, etc.Step One: Pilot HoleFirst drill the hole in wood or plastic to locate or guide a screw and increase the size according to the tap. Without a pilot hole, the screw may become too tight and break the material or break the screw completely.Step Two: Install the Chamfer ToolInstall the chamfer cutter on the drill press.If you need to chamfer a 16mm hole, you can choose a 15-20mm chamfering device. Add water or cutting oil to cool when chamfering.Step Three: Clearance HoleFinally, screw in until horizontal. This drill bit need to use the drill press, it is easy to shake and it will affect the chamfering effect if you use the hand drill.