Found 2 products about

HSS step drill bit manufacture

Moretop HSS Taper Drill Bit 16-30.5mm 13040003

Moretop HSS Taper Drill Bit 16-30.5mm 13040003

Moretop taper drill bits are precisely ground on a CNC grinder and match the shapes of wood screws so that screw threads grip

Model:13040003
Moretop HSS Spiral Step Drill Bit 4-22mm 13031003

Moretop HSS Spiral Step Drill Bit 4-22mm 13031003

Precision engineered steel bits with spiral flute tapered cutting edges allowing for de-burring or chamfering of the hole

Model:13031003