Small Size:
4-12mm (4 6 8 10 12) 5 Steps Hex Shaft (6.35mm) Titanium Coated
Medium Size:
4-20mm (4 6 8 10 12 14 16 18 20)mm 9 Steps Hex Shaft (6.35mm) Titanium Coated
Large Size:
4-32mm (4 6 8 10 12 14 16 18 20 22 24 26 28 30 32) mm 15 hex shaft (6.35mm) titanium coating
Features:
1. Thinned tips provide a good bite, no center punching.
2. The shape of the shaft is attached to the drill chuck with a hexagonal axis, and it can also be used with impact drivers.
3. The step drill is titanium coated so it has excellent abrasion resistance, heat resistance, excellent sharpness and durability.
4. It can be used to drill holes in various sizes such as stainless steel plates, iron plates, aluminum plates, plastic, plastic pipes, etc.