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 |
|---|---|---|---|---|---|---|---|
| HDCS636-2252 | TiN-coated left-hand step solid carbide drill | 1.086 | — | — | — | 150° | View full callout |
| HDCS636-2253 | TiN-coated left-hand step solid carbide drill | 1.088 | — | — | — | 118° | View full callout |
| HDCS636-2254 | TiN-coated left-hand step solid carbide drill | 0.724 | — | — | — | 118° | View full callout |
| HDCS636-2255 | TiN-coated left-hand step solid carbide drill | 2.113 | — | — | — | 118° | View full callout |
| HDCS636-2256 | Black-coated left-hand step solid carbide drill | 1.078 | — | — | — | 118° | View full callout |
| HDCS636-2257 | TiN-coated left-hand step solid carbide drill | 0.71 | — | — | — | 118° | View full callout |
| HDCS636-2258 | TiN-coated left-hand step solid carbide drill | 1.09 | — | — | — | 160° | View full callout |
| HDCS636-2261 | TiN-coated left-hand step solid carbide drill | 0.92 | — | — | — | 118° | View full callout |
| HDCS636-2264 | TiN-coated left-hand step solid carbide drill | 1.29 | — | — | — | 150° | View full callout |
| HDCS636-2267 | TiN-coated left-hand step solid carbide drill | 0.885 | — | — | — | 155° | View full callout |
| HDCS636-2268 | TiN-coated left-hand step solid carbide drill | 1.088 | — | — | — | 118° | View full callout |
| HDCS636-2269 | TiN-coated left-hand step solid carbide drill | 0.887 | — | — | — | 150° | View full callout |
| HDCS636-2279 | TiN-coated left-hand step solid carbide drill | 0.87 | — | — | — | 90° | View full callout |
| HDCS636-2282 | TiN-coated left-hand step solid carbide drill | 1.091 | — | — | — | 150° | View full callout |
| HDCS636-2285 | TiN-coated left-hand step solid carbide drill | 1.093 | — | — | — | 160° | View full callout |
| HDCS636-2286 | TiN-coated left-hand step solid carbide drill | 1.08 | — | — | — | 118° | View full callout |
| HDCS636-2287 | Black-coated left-hand step solid carbide drill | 1.083 | — | — | — | 118° | View full callout |
| HDCS636-2295 | TiN-coated left-hand step solid carbide drill | 0.883 | — | — | — | 150° | View full callout |
| HDCS636-2300 | TiN-coated left-hand step solid carbide drill | 1.58 | — | — | — | 120° | View full callout |
| HDCS636-2304 | TiN-coated left-hand step solid carbide drill | 1.09 | — | — | — | 120° | View full callout |
| HDCS636-2305 | TiN-coated left-hand step solid carbide drill | 1.845 | — | — | — | 180° | View full callout |
| HDCS636-2309 | TiN-coated left-hand step solid carbide drill | 1.093 | — | — | — | 160° | View full callout |
| HDCS636-2310 | TiN-coated left-hand step solid carbide drill | 1.085 | — | — | — | 150° | View full callout |
| HDCS636-2311 | TiN-coated left-hand step solid carbide drill | 1.087 | — | — | — | 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.