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 |
|---|---|---|---|---|---|---|---|
| HDCS636-2312 | TiN-coated left-hand step solid carbide drill | 0.885 | — | — | — | 118° | View full callout |
| HDCS636-2319 | TiN-coated left-hand step solid carbide drill | 1.49 | — | — | — | 118° | View full callout |
| HDCS636-2322 | TiN-coated left-hand step solid carbide drill | 1.455 | — | — | — | 120° | View full callout |
| HDCS636-2323 | TiN-coated left-hand step solid carbide drill | 1.458 | — | — | — | 120° | View full callout |
| HDCS636-2325 | TiN-coated left-hand step solid carbide drill | 1.085 | — | — | — | 150° | View full callout |
| HDCS636-2327 | TiN-coated left-hand step solid carbide drill | 1.093 | — | — | — | 160° | View full callout |
| HDCS636-2329 | TiN-coated left-hand step solid carbide drill | 0.876 | — | — | — | 118° | View full callout |
| HDCS636-2337 | TiN-coated left-hand step solid carbide drill | 0.89 | — | — | — | 150° | View full callout |
| HDCS636-2340 | TiN-coated left-hand step solid carbide drill | 0.885 | — | — | — | 118° | View full callout |
| HDCS636-2344 | TiN-coated left-hand step solid carbide drill | 0.895 | — | — | — | 118° | View full callout |
| HDCS636-2348 | TiN-coated left-hand step solid carbide drill | 1.088 | — | — | — | 150° | View full callout |
| HDCS636-2353 | TiN-coated left-hand step solid carbide drill | 1.092 | — | — | — | 120° | View full callout |
| HDCS636-2354 | TiN-coated left-hand step solid carbide drill | 0.886 | — | — | — | 150° | View full callout |
| HDCS636-2355 | Black-coated left-hand step solid carbide drill | 1.093 | — | — | — | 118° | View full callout |
| HDCS636-2357 | TiN-coated left-hand step solid carbide drill | 0.65 | — | — | — | 118° | View full callout |
| HDCS636-2359 | TiN-coated left-hand step solid carbide drill | 1.089 | — | — | — | 118° | View full callout |
| HDCS636-2361 | TiN-coated left-hand step solid carbide drill | 0.894 | — | — | — | 118° | View full callout |
| HDCS636-2362 | TiN-coated left-hand step solid carbide drill | 1.088 | — | — | — | 150° | View full callout |
| HDCS636-2366 | TiN-coated left-hand step solid carbide drill | 1.09 | — | — | — | 150° | View full callout |
| HDCS636-2369 | TiN-coated left-hand step solid carbide drill | 1.45 | — | — | — | 118° | View full callout |
| HDCS636-2374 | TiN-coated left-hand step solid carbide drill | 1.096 | — | — | — | 118° | View full callout |
| HDCS636-2376 | TiN-coated left-hand step solid carbide drill | 1.092 | — | — | — | 120° | View full callout |
| HDCS636-2377 | TiN-coated left-hand step solid carbide drill | 1.83 | — | — | — | 160° | View full callout |
| HDCS636-2379 | TiN-coated left-hand step solid carbide drill | 1.084 | — | — | — | 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.