ITEM NAME:4pcs Chamfer Countersink Deburring Drill Bit Set Crosshole Cutting Metal To T8X7 4pcs Chamfer Countersink Deburring Drill Bit Set Crosshole Cutting Metal To T8X7 100% brand new and high quality 4pcs Chamfer Countersink Deburring Drill Bit Set Crosshole Cutting Metal Tool Durable practical chamfering machine Used for workpiece circular aperture chamfering or cone hole, the edges on the surface of the chamfering processing. Material: HSS4241 Surface: no titanium coating Inclined hole chamfer: 2 - 5, 5 - 10, 10 - 15,15 - 20mm Length: 44mm, 48mm, 63mm, 83mm Color: Silver Package Contents: 4 x Chamfers Drill Bit Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..Inclined hole chamfer: 2 - 5, 5 - 10, 10 - 15,15 - 20mm. Used for workpiece circular aperture chamfering or cone hole, the edges on the surface of the chamfering processing. 4 x Chamfers Drill Bit. Surface: no titanium coating.