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-1630-03-01 | Bronze-coated extended-length solid carbide drill | 1.63 | 20 | 3 | 50 | — | Standard |
| DC426L-1630-03-02 | Bronze-coated extended-length solid carbide drill | 1.63 | 27 | 3 | 60 | — | Standard |
| DC426L-1630-04-01Repeat order | Black-coated extended-length solid carbide drill | 1.63 | 20 | 3 | 50 | — | Standard |
| DC426L-1630-04-02 | Black-coated extended-length solid carbide drill | 1.63 | 13.6 | 3 | 38 | — | Standard |
| DC426L-1640-04-01 | Black-coated extended-length solid carbide drill | 1.64 | 20 | 3 | 50 | — | Standard |
| DC426L-1650-03-01 | Bronze-coated extended-length solid carbide drill | 1.65 | 20 | 3 | 50 | — | Standard |
| DC426L-1650-03-02 | Bronze-coated extended-length solid carbide drill | 1.65 | — | — | — | 120° | View full callout |
| DC426L-1650-03-03 | Bronze-coated extended-length solid carbide drill | 1.65 | — | — | — | — | View full callout |
| DC426L-1650-04-01Repeat order | Black-coated extended-length solid carbide drill (YZ variant) | 1.65 | 20 | 3 | 50 | — | Standard |
| DC426L-1650-04-02 | Black-coated extended-length solid carbide drill | 1.65 | 15 | 3 | 50 | 135° | Standard |
| DC426L-1650-04-03 | Black-coated extended-length solid carbide drill | 1.65 | 12 | 3 | 38 | — | Standard |
| DC426L-1650-04-04 | Black-coated extended-length solid carbide drill | 1.65 | 23 | 3 | 60 | — | Standard |
| DC426L-1650-04-06 | Black-coated extended-length solid carbide drill | 1.65 | 13.6 | 3 | 38 | — | Standard |
| DC426L-1660-04-01 | Black-coated extended-length solid carbide drill | 1.66 | 20 | 3 | 50 | — | Standard |
| DC426L-1660-04-02 | Black-coated extended-length solid carbide drill | 1.66 | 12 | 3 | 38 | 120° | Standard |
| DC426L-1670-03-01 | Bronze-coated extended-length solid carbide drill | 1.67 | 20 | 3 | 50 | — | Standard |
| DC426L-1670-04-01 | Black-coated extended-length solid carbide drill | 1.67 | 20 | 3 | 50 | — | Standard |
| DC426L-1680-04-01 | Black-coated extended-length solid carbide drill | 1.68 | 20 | 3 | 50 | — | Standard |
| DC426L-1680-05 | Bronze-coated extended-length solid carbide drill | 1.68 | 20 | 3 | 50 | — | Standard |
| DC426L-1690-04-01 | Black-coated extended-length solid carbide drill | 1.69 | 18 | 3 | 50 | — | Standard |
| DC426L-1690-04-02 | Black-coated extended-length solid carbide drill | 1.69 | 20 | 3 | 50 | — | Standard |
| DC426L-1700-02-01 | Black-coated extended-length solid carbide drill | 1.7 | 20 | 3 | 50 | 140° | Standard |
| DC426L-1700-03-01 | Bronze-coated extended-length solid carbide drill | 1.7 | 20 | 3 | 50 | — | Standard |
| DC426L-1700-04-01Repeat order | Black-coated extended-length solid carbide drill (YZ variant) | 1.7 | 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.