For process engineers
The table is a production record, not a sales range.
HDCS636 — TiN-coated left-hand step solid carbide drill
A real production series with 1508 standard part numbers. The table below is taken from the geometry we have actually ground and shipped.

- Part numbers in series
- 1,508
- Diameter span
- 0.433–3 mm
- Coating
- TiN
What the catalogue commits to
Production capability
Min. diameter 0.15 mm
Typical application
Non-standard step drilling for stepped and counterbored holes.
Part numbers in HDCS636
1,508 part numbersFilter this series further
| Part no. | Description | D1 mm | Flute mm | Shank mm | OAL mm | Point | Geometry |
|---|---|---|---|---|---|---|---|
| HDCS636-2380 | TiN-coated left-hand step solid carbide drill | 1.091 | — | — | — | 118° | View full callout |
| HDCS636-2391 | TiN-coated left-hand step solid carbide drill | 1.082 | — | — | — | 118° | View full callout |
| HDCS636-2393 | TiN-coated left-hand step solid carbide drill | 1.089 | — | — | — | 150° | View full callout |
| HDCS636-2395 | TiN-coated left-hand step solid carbide drill | 1.085 | — | — | — | 118° | View full callout |
| HDCS636-2396 | TiN-coated left-hand step solid carbide drill | 1.091 | — | — | — | 145° | View full callout |
| HDCS636-2399 | TiN-coated left-hand step solid carbide drill | 1.085 | — | — | — | 118° | View full callout |
| HDCS636-2403 | TiN-coated left-hand step solid carbide drill | 1.292 | — | — | — | 160° | View full callout |
| HDCS636-2404 | TiN-coated left-hand step solid carbide drill | 0.89 | — | — | — | 160° | View full callout |
| HDCS636-2408 | TiN-coated left-hand step solid carbide drill | 0.715 | — | — | — | 120° | View full callout |
| HDCS636-2413 | TiN-coated left-hand step solid carbide drill | 1.085 | — | — | — | 118° | View full callout |
| HDCS636-2417 | TiN-coated left-hand step solid carbide drill | 1.27 | — | — | — | 90° | View full callout |
| HDCS636-2419 | TiN-coated left-hand step solid carbide drill | 0.888 | — | — | — | 150° | View full callout |
| HDCS636-2423 | TiN-coated left-hand step solid carbide drill | 1.093 | — | — | — | 150° | View full callout |
| HDCS636-2424 | TiN-coated left-hand step solid carbide drill | 1.09 | — | — | — | 150° | View full callout |
| HDCS636-2425 | TiN-coated left-hand step solid carbide drill | 0.882 | — | — | — | 155° | View full callout |
| HDCS636-2430 | TiN-coated left-hand step solid carbide drill | 0.887 | — | — | — | 155° | View full callout |
| HDCS636-2436 | TiN-coated left-hand step solid carbide drill | 1.1 | — | — | — | 60° | View full callout |
| HDCS636-2437 | TiN-coated left-hand step solid carbide drill | 1.087 | — | — | — | 118° | View full callout |
| HDCS636-2440 | TiN-coated left-hand step solid carbide drill | 1.088 | — | — | — | 118° | View full callout |
| HDCS636-2441 | TiN-coated left-hand step solid carbide drill | 0.884 | — | — | — | 90° | View full callout |
| HDCS636-2442 | TiN-coated left-hand step solid carbide drill | 1.1 | — | — | — | 60° | View full callout |
| HDCS636-2443 | TiN-coated left-hand step solid carbide drill | 1.85 | — | — | — | 118° | View full callout |
| HDCS636-2444 | TiN-coated left-hand step solid carbide drill | 1.083 | — | — | — | 118° | View full callout |
| HDCS636-2449 | Black-coated left-hand step solid carbide drill | 1.455 | — | — | — | 118° | View full callout |
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.