Drillpro DB-S2 4-22MM Hex Titanium Step Cone Drill Bit Hole Cutter HSS 4241

Description Drillpro DB S2 Hex Titanium Step Cone Drill Bit Hole Cutter 4 22MM HSS 4241 For Sheet MetalSpecification Brand DrillproModel DB S2Material High speed steel 4241Size 4 22 mm 10 Setps 6 8 10 12 14 16 18 20 22mm Shank 6mm dia 25mm L Total 75mm L Allow 1 3mm measurement error Features 1 The ladder of its unique structure a bit can open a variety of specifications of aperture 2 Do not need to use center punch compared with twist drill is not easy to be broken 3 Deburring chamfering elliptic hole enlargement twist drill the function of themwas unable but it is possible 4 The use of tools drill bench drill Work while water cooling can effectively extend the service life of drill bit recommend drilling rate of 250 250 RPM Package included 1x Hex Titanium Step Drill