5Pcs Metric 3 Flats Shank Golden Black Color HSS Step Drill Bit Set
| Procuct Name |
5Pcs Tri Flat Shank Straight Flute Golden & Black Color HSS Step Drill Bit Set for Metal Sheet Tube Drilling in Aluminum Case |
| Sizes | 4-12mm, 4-12mm, 4-22mm, 6-18mm, 6-35mm (Inch Size is Available) |
| Material | HSS (Cobalt M35 is Available) |
| Flute Type | Straight Flute (Spiral Flute is Available) |
| Flute Number | Two Flutes (Single Flute, Three Flutes are Available) |
| Shank | Tri Flat Shank (Quick Change Hex Shank, Round Shank, Double R Shank are Available) |
| Surface Finish | Black & Amber (TiN, Bright, Co-coated, Black Oxide, Black & Bright, TiAIN are Available) |
| Package | 5Pcs in Aluminum Case |
| 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. 135° Split Point Tip: increases cutting speed with self-centering and the drills do not run off center. 3. A variety of hole diameters can be drilled using only one tool. 4. The dimension of drilled hole is exact. 5. Two Flute Design: provides longer life and better chip removal. 6. Only for rotary use. |
