Cobalt Step Drill Bit 3-13mm Step Drill 1/4 Inch Hex Shank Woodworking Bits

Specification
Material HSSCo M35 Cobalt
Coating Cobalt coating

Uses
1 Highspeed steel cobalt M35 Suitable for Aluminum insulation board PVC board chamfersteel aluminum sheet metal carbon steel 304 stainless steel etc
2 Industrialgrade cobalt plating More than 4241and 6542 highspeed steel materials live longer

Features
1 CNC CNC CBN grinding wheel
2 118 X Bit Design you can drill from any angle no slipping
3 New flute design great chip removal small resistance geat heat dissipation
4 Higher accuracy sharper achieve drilling burr
5 Plated cobalt coating a substantial increase in the wear resistance and oxidation resistance
6 14 Inch hex shank Ensure that the tool concentricity
7 Ideal for cutting through metal wood and plastic quickly and easily

Package Included
1 x Step Drill Bit