Spiral Grooved Step Drill Bit, M35 High-Speed Steel 4-20mm 4-32mm Cobalt-containing Spiral Pagoda Drill, Drill and Enlarge Hole for Wood Metal Stainless Steel (Bearing Steel 3pcs)
Product description
- Wide Application Perfect Step Drill Bits suitable for drill holes in various material. Drill and Enlarge Holes in Stainless Steel Iron Hard Metal Sheet, plastic, aluminum, copper, iron sheet and many other types of sheet metal.
- Cobalt Drill Bit The addition of cobalt increases heat resistance. No need for center punch, not easy to break, can be used for deburring, chamfering and opening. It is widely used in metal manufacturing because of its ability to resist wear over conventional high speed steels. this step drill also performs well in corrosion and rust resistance.
- Service Guarantee Customer satisfaction is our greatest motivation, we will do our best service, if you have any questions about this step drill bit, please feel free to contact.
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