Gradually drill 4-20mm.

Conical step drill for drilling holes in steel in the size range of 4-20 mm. A wide range of applications allows drilling of materials such as: non-ferrous metals, thin-walled steel sheets, plastics, steel plates, PVC plates, aluminum. Made of HSS high speed steel with increased cutting capacity in very difficult conditions, high speed and high coefficient of friction. The larger diameter cutting technique guarantees better hole finishing quality. Packaged in a reusable plastic tube with a hole for hanging on a hook. Covered with a titanium coating, which significantly improves the durability of the drill. Cylindrical stem. Industrial quality.

Manufacturer: Richmann | Diameter, mm: 20 | Diameter, mm: 14 | Diameter, mm: 12 | Diameter, mm: 8 | Diameter, mm: 18 | Diameter, mm: 16 | Diameter, mm: 10 | Diameter, mm: 6 | Diameter, mm: 4 | Shank / chuck type: Straight