HSS Step Drill Bit

You can drill holes sized from 4 to 12mm, 6 to 20mm and 6 to 30mm as required, using only one drill bit. The drill bit has two cutting edges and a fixed centre point. Diameter details marked on the individual steps by laser. Suitable for metal, plastics, wood, plexiglass, etc. Drill depth for boards up to 6mm thick. No centring required. Step drill bit size 1, cutting range 4-12mm. Length approx. 80mm, shaft diameter 6mm. Drill steps increase in 1mm stages.