| Procuct Name | 3Pcs Hex Shank Straight Flute Cone Titanium HSS Step Drill Bit Set for Metal Tube Sheet Drilling in Nylon Bag |
| Size | 4-12mm, 4-20mm, 4-32mm (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 | Quick Change Hex Shank (Three Flats Shank, Round Shank, Double R Shank are Available) |
| Surface Finish | TiN (Bright, Black & Amber, Co-coated, Black Oxide, TiAIN, Black & Bright are Available) |
| Package | 3Pcs in Nylon Bag (Wooden Box, Plastic Box, Double Blister, Metal Box, Aluminum Case are 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. 135° Spilt 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. Titanium coating provides up to 2 times the life over high speed steel. 7. Only for rotary use. |