Drillpro 6-35MM Titanium Coated Step Cone Drill Bit HSS 13 Steps Hex Shank

Description 6 35MM Titanium Coated Step Cone Drill Bit 13 Steps Hex ShankSpecification Material High speed steel 4241Size 6 35 mm 6 8 10 12 16 18 20 22 25 28 30 32 35 mmShank 6mm dia 30mm L Total 110mm 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 them was 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