| Customization: | Available |
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| Customized: | Non-Customized |
| Type: | Step Drill Bit |
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The HSS Spiral Grooved Step Drills by Hangzhou Fanxi Tools Co., Ltd. are designed for optimal cutting performance and quiet operation. Made from high-speed steel, these drills are CBN ground and feature spiral flutes, ensuring smooth chip flow and easy removal of long, non-breaking chips. The spiral grooves also protect the cutting edges, reducing the occurrence of built-up edges and cold weld marks. With their cone shape, these drills make it easier to withdraw the tool from the material, saving you time and effort.
| Size Range | Step No. | Shank Size |
| 4 - 12mm x 2mm | 5 | 6mm |
| 4 - 12 mm x 1mm | 9 | 6mm |
| 4 - 20mm x 2mm | 9 | 8mm |
| 4 - 22mm x 2mm | 10 | 8/10mm |
| 4 - 30mm x 2mm | 14 | 10mm |
| 4 - 32mm x 2mm | 15 | 10mm |
| 4 - 39mm x 2-3mm | 14 | 10mm |
| 5 - 28mm | 7 | 10mm |
| 5 - 28.3mm | 10 | 10mm |
| 5 - 35mm x 2-3mm | 13 | 13mm |
| 6 - 18mm x 2mm | 7 | 10mm |
| 6 - 20mm x 2mm | 8 | 10mm |
| 6 - 24mm x 2mm | 10 | 10mm |
| 6 - 25mm | 7 | 10mm |
| 6 - 26.75mm | 8 | 10mm |
| 6 - 30mm x 2mm | 13 | 10mm |
| 6 - 30.5mm | 10 | 10mm |
| 6 - 32mm | 8 | 10mm |
| 6 - 32mm | 9 | 10mm |
| 6 - 37mm | 12 | 10mm |
| 6 - 38mm | 12 | 10mm |
| 6 - 40mm | 16 | 13mm |
| 9 - 36mm x 3mm | 10 | 12mm |
| 10 - 20mm x 1mm | 11 | 10mm |
| 12 - 20mm x 1mm | 9 | 10mm |
| 12.5 - 30.5mm | 7 | 12mm |
| 13 - 38mm | 10 | 12mm |
| 14 - 24mm x 2mm | 6 | 13mm |
| 14 - 25mm | 7 | 13mm |
| 20 - 30mm x 1mm | 11 | 13mm |
| 20 - 34mm x 2mm | 8 | 13mm |
| 30 - 40mm x 1mm | 11 | 13mm |
| 40 - 50mm x 1mm | 11 | 13mm |
| 50 - 60mm x 1mm | 11 | 13mm |
| 5 - 30.5mm | 13 | 12mm |
| 5 - 38mm | 14 | 12mm |
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