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-2450-04-01Repeat order | Black-coated extended-length solid carbide drill (YZ variant) | 2.45 | 25 | 3 | 60 | — | Standard |
| DC426L-2450-04-03 | Black-coated extended-length solid carbide drill | 2.45 | 18 | 3 | 50 | 135° | Standard |
| DC426L-2450-04-04 | Black-coated extended-length solid carbide drill | 2.45 | 12.5 | 3 | 38 | — | Standard |
| DC426L-2450-04-05 | Black-coated extended-length solid carbide drill | 2.45 | 15 | 3 | 55 | 118° | Standard |
| DC426L-2460-04-01 | Black-coated extended-length solid carbide drill | 2.46 | 25 | 3 | 60 | — | Standard |
| DC426L-2470-03-01 | Bronze-coated extended-length solid carbide drill | 2.47 | 25 | 3 | 60 | — | Standard |
| DC426L-2470-03-02 | Bronze-coated extended-length solid carbide drill | 2.47 | 17 | 3 | 50 | — | Standard |
| DC426L-2470-04-01 | Black-coated extended-length solid carbide drill | 2.47 | 25 | 3 | 60 | — | Standard |
| DC426L-2480-03-01 | Bronze-coated extended-length solid carbide drill | 2.48 | 25 | 3 | 60 | — | Standard |
| DC426L-2480-04-01Repeat order | Black-coated extended-length solid carbide drill | 2.48 | 25 | 3 | 60 | — | Standard |
| DC426L-2490-04-01 | Black-coated extended-length solid carbide drill | 2.49 | 25 | 3 | 60 | — | Standard |
| DC426L-2500-03-01Repeat order | Bronze-coated extended-length solid carbide drill | 2.5 | 25 | 3 | 60 | — | Standard |
| DC426L-2500-03-03 | Bronze-coated extended-length solid carbide drill | 2.5 | 20 | 3 | 60 | — | Standard |
| DC426L-2500-03-04 | Bronze-coated extended-length solid carbide drill | 2.5 | 15 | 3 | 100 | 120° | Standard |
| DC426L-2500-03-05 | Bronze-coated extended-length solid carbide drill | 2.5 | 40 | 3 | 85 | — | Standard |
| DC426L-2500-03-08 | Bronze-coated extended-length solid carbide drill (YZ variant) | 2.5 | 20 | 3 | 62 | — | Standard |
| DC426L-2500-04-01High-runner | Black-coated extended-length solid carbide drill | 2.5 | 25 | 3 | 60 | — | Standard |
| DC426L-2500-04-04 | Black-coated extended-length solid carbide drill | 2.5 | 31.5 | 3 | 65 | — | Standard |
| DC426L-2500-04-09 | Black-coated extended-length solid carbide drill (YZ variant) | 2.5 | 25 | 3 | 60 | — | Standard |
| DC426L-2500-T01 | Bronze-coated extended-length solid carbide drill (YZ variant) | 2.5 | 25 | 3 | 60 | — | Standard |
| DC426L-2510-04-01Repeat order | Black-coated extended-length solid carbide drill (YZ variant) | 2.51 | 25 | 3 | 60 | — | Standard |
| DC426L-2520-04-01Repeat order | Black-coated extended-length solid carbide drill | 2.52 | 25 | 3 | 60 | — | Standard |
| DC426L-2520-04-02 | Black-coated extended-length solid carbide drill | 2.52 | 13 | 3 | 38 | — | Standard |
| DC426L-2520-04-03 | Black-coated extended-length solid carbide drill | 2.52 | 15 | 3 | 38 | — | 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.