| Procuct Name | 3Pcs Single Groove HSS Conical Drill Bits for Tube and Sheet Drilling in Metal Case |
| Size | 3-14mm, 8-20mm, 16-30.5mm |
| Material | HSS (Cobalt M35 is Available) |
| Flute Type | Straight Flute (Spiral Flute is Available) |
| Flute Number | Single Flute (Two Flutes, Three Flutes are Available) |
| Shank | Flat Shank (Quick Change Hex Shank, Round Shank, Double R Shank are Available) |
| Surface Finish | Bright (TiN, Black & Amber, Co-coated, Black Oxide, Black & Bright, TiAIN are Available) |
| Package | 3Pcs in Metal Box (Plastic Box is Available) |
| Features | 1. Step drill bits are perfect for drilling and enlarging multiple-holes in thin sections of sheet metals, pipes, plexiglass, plastics, wood up to a thickness of 5mm. 2. A variety of hole diameters can be drilled using only one tool. 3. Single Cutting Edge:creates perfectly round holes in metal, plastic, wood and other thin materials without center punching. 4. High speed steel provides good life and high precision. 5. Three Flats Shank: fits into power tools chuck securely and eliminates slip. 6. Only for rotary use. |