Description
We made CBN ground spiral flute step drill bits.
It is made from high grade of high speed steel.
Round shank, hex shank available.
Tin coating and Tialn coating availabe.
Sets on request.
| STC001, HSS STEPS DRILL |
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| Material: HSS. |
| Bright Finishing or Tin-coated. |
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| STC001A, INCH SIZES STEPS DRILL |
| No. of Holes | Description | Shank Diameter | Step Thickness |
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| 13 | 1/8" - 1/2" by 1/32" increase | 1/4" | 1/8" |
| 6 | 3/16" - 1/2" by 1/16" increase | 1/4" | 3/8" |
| 9 | 1/4" - 3/4" by 1/16" increase | 3/8" | 1/8" |
| 12 | 3/16" - 7/8" by 1/16" increase | 3/8" | 1/8" |
| 10 | 1/4" - 1.3/8" by 1/8" increase | 1/2" | 1/8" |
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| STC001A, INCH SIZES STEPS DRILL |
| No. of Holes | Description | Shank Diameter |
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| 9 | 4 - 12mm by 1mm Increase | 6/6.5mm |
| 5 | 4 - 12mm by 2mm Increase | 6/6.5mm |
| 7 | 6 - 18mm by 2mm Increase | 10mm |
| 8 | 6 - 20mm by 2mm Increase | 8mm |
| 12 | 6 - 30mm by 2/3mm Increase | 10mm |
| 9 | 4 - 20mm by 2mm Increase | 10mm |
| 10 | 4 - 22mm by 2mm Increase | 10mm |
| 14 | 4 - 30mm by 2 mm increase | 14mm |
| 13 | 5 - 35mm by 2/3mm Increase | 13mm |
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| STC001-S, STEPS DRILL SET |
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| Model | pcs/set | DESCRIPTION | | PACKING |
| STC001-S1 | 3pcs/set | 4 - 12 x 9 | Metal / wood / plastic |
| 4 - 20 x 9 |
| 4 - 30 x 14 |
| STC001-S2 | 3pcs/set | 4 - 12 x 5 | Metal / wood / plastic |
| 4 - 20 x 9 |
| 4 - 32 x 15 |
| STC001-S3 | 3pcs/set | 4 - 12 x 9 | Metal / wood / plastic |
| 6 - 20 x 8 |
| 6 - 30 x 13 |
| STC001-S4 | 3pcs/set | 3/16" - 1/2" x 6 | Metal / wood / plastic |
| 1/8" - 1/2" x 13 |
| 1/4" - 3/4" x 9 |
Complaint
