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 |
|---|---|---|---|---|---|---|---|
| HDCS636-1399 | TiN-coated left-hand step solid carbide drill | 1.09 | — | — | — | 160° | View full callout |
| HDCS636-1401 | TiN-coated left-hand step solid carbide drill | 1.401 | — | — | — | 118° | View full callout |
| HDCS636-1404 | TiN-coated left-hand step solid carbide drill | 1.435 | — | — | — | 118° | View full callout |
| HDCS636-1405 | TiN-coated left-hand step solid carbide drill | 0.89 | — | — | — | 150° | View full callout |
| HDCS636-1406 | TiN-coated left-hand step solid carbide drill | 1.46 | — | — | — | 150° | View full callout |
| HDCS636-1412 | TiN-coated left-hand step solid carbide drill | 1.515 | — | — | — | 118° | View full callout |
| HDCS636-1414 | TiN-coated left-hand step solid carbide drill | 1.082 | — | — | — | 118° | View full callout |
| HDCS636-1418 | TiN-coated left-hand step solid carbide drill | 1.085 | — | — | — | 150° | View full callout |
| HDCS636-1419 | TiN-coated left-hand step solid carbide drill | 1.285 | — | — | — | 128° | View full callout |
| HDCS636-1420 | TiN-coated left-hand step solid carbide drill | 1.48 | — | — | — | 118° | View full callout |
| HDCS636-1426 | TiN-coated left-hand step solid carbide drill | 0.885 | — | — | — | 150° | View full callout |
| HDCS636-1427 | TiN-coated left-hand step solid carbide drill | 0.89 | — | — | — | 155° | View full callout |
| HDCS636-1429 | TiN-coated left-hand step solid carbide drill | 1.085 | — | — | — | 118° | View full callout |
| HDCS636-1431 | TiN-coated left-hand step solid carbide drill | 1.286 | — | — | — | 118° | View full callout |
| HDCS636-1434 | TiN-coated left-hand step solid carbide drill | 1.087 | — | — | — | 118° | View full callout |
| HDCS636-1435 | TiN-coated left-hand step solid carbide drill | 1.3 | — | — | — | 128° | View full callout |
| HDCS636-1439 | TiN-coated left-hand step solid carbide drill | 0.888 | — | — | — | 155° | View full callout |
| HDCS636-1443 | TiN-coated left-hand step solid carbide drill | 1.089 | — | — | — | 150° | View full callout |
| HDCS636-1444 | TiN-coated left-hand step solid carbide drill | 1 | — | — | — | 160° | View full callout |
| HDCS636-1445 | TiN-coated left-hand step solid carbide drill | 0.895 | — | — | — | 160° | View full callout |
| HDCS636-1448 | TiN-coated left-hand step solid carbide drill | 1.5 | — | — | — | 118° | View full callout |
| HDCS636-1450 | TiN-coated left-hand step solid carbide drill | 0.876 | — | — | — | 150° | View full callout |
| HDCS636-1452 | TiN-coated left-hand step solid carbide drill | 0.893 | — | — | — | 160° | View full callout |
| HDCS636-1459 | TiN-coated left-hand step solid carbide drill | 0.887 | — | — | — | 150° | 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.