For process engineers
The table is a production record, not a sales range.
DC426L — Black-coated extended-length solid carbide drill
A real production series with 846 standard part numbers. The table below is taken from the geometry we have actually ground and shipped.

- Part numbers in series
- 846
- Diameter span
- 0.04–3 mm
- Coating
- Black
What the catalogue commits to
Production capability
Min. diameter 0.10 mm
Catalogue reference
2026–2027 product catalogue, printed page P28. The full EDP table is available on request as a PDF.
Typical application
Deep-hole drilling in steel and high-temperature alloys.
Part numbers in DC426L
846 part numbersFilter this series further
| Part no. | Description | D1 mm | Flute mm | Shank mm | OAL mm | Point | Geometry |
|---|---|---|---|---|---|---|---|
| DC426L-1700-04-03 | Black-coated extended-length solid carbide drill | 1.7 | — | — | — | 135° | View full callout |
| DC426L-1700-04-04 | Black-coated extended-length solid carbide drill | 1.7 | 12 | 3 | 38 | — | Standard |
| DC426L-1700-04-05 | Black-coated extended-length solid carbide drill | 1.7 | 13.6 | 3 | 38 | — | Standard |
| DC426L-1700-04-06 | Black-coated extended-length solid carbide drill | 1.7 | 20 | 3 | 60 | — | Standard |
| DC426L-1710-04-01 | Black-coated extended-length solid carbide drill | 1.71 | 20 | 3 | 50 | — | Standard |
| DC426L-1720-04-01Repeat order | Black-coated extended-length solid carbide drill | 1.72 | 20 | 3 | 50 | — | Standard |
| DC426L-1730-04-01Repeat order | Black-coated extended-length solid carbide drill | 1.73 | 20 | 3 | 50 | — | Standard |
| DC426L-1740-04-01 | Black-coated extended-length solid carbide drill | 1.74 | 20 | 3 | 50 | — | Standard |
| DC426L-1750-03-01 | Bronze-coated extended-length solid carbide drill | 1.75 | 20 | 3 | 50 | — | Standard |
| DC426L-1750-03-02 | Bronze-coated extended-length solid carbide drill | 1.75 | — | — | — | — | View full callout |
| DC426L-1750-04-01Repeat order | Black-coated extended-length solid carbide drill (YZ variant) | 1.75 | 20 | 3 | 50 | — | Standard |
| DC426L-1750-04-02 | Black-coated extended-length solid carbide drill | 1.75 | 12 | 3 | 38 | — | Standard |
| DC426L-1750-15-01 | Black-coated extended-length solid carbide drill | 1.75 | — | — | — | — | View full callout |
| DC426L-1760-04-01 | Black-coated extended-length solid carbide drill | 1.76 | 20 | 3 | 50 | — | Standard |
| DC426L-1770-04-01 | Black-coated extended-length solid carbide drill | 1.77 | 20 | 3 | 50 | — | Standard |
| DC426L-1780-04-01 | Black-coated extended-length solid carbide drill | 1.78 | 20 | 3 | 50 | — | Standard |
| DC426L-1790-04-01 | Black-coated extended-length solid carbide drill | 1.79 | 20 | 3 | 50 | — | Standard |
| DC426L-1800-03-01Repeat order | Bronze-coated extended-length solid carbide drill | 1.8 | 20 | 3 | 50 | — | Standard |
| DC426L-1800-03-04 | Bronze-coated extended-length solid carbide drill | 1.8 | 35 | 3 | 75 | — | Standard |
| DC426L-1800-03-05 | Bronze-coated extended-length solid carbide drill | 1.8 | 32 | 4 | 60 | 140° | Standard |
| DC426L-1800-03-06 | Bronze-coated extended-length solid carbide drill | 1.8 | — | — | — | — | View full callout |
| DC426L-1800-03-08 | Bronze-coated extended-length solid carbide drill | 1.8 | 26 | 3 | 60 | — | Standard |
| DC426L-1800-03-09 | Bronze-coated extended-length solid carbide drill | 1.8 | 14.4 | 3 | 60 | — | Standard |
| DC426L-1800-04-01Repeat order | Black-coated extended-length solid carbide drill (YZ variant) | 1.8 | 20 | 3 | 50 | — | Standard |
How to read a part number. The prefix is the series, the four digits after the first dash encode the cutting diameter in thousandths of a millimetre (for example 1000 is 1.000 mm), and any trailing digits identify the flute or variant. The full geometry is written as D1 × flute length × shank × overall length.