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 |
|---|---|---|---|---|---|---|---|
| HDCS636-1266 | TiN-coated left-hand step solid carbide drill | 1.093 | — | — | — | 120° | View full callout |
| HDCS636-1272 | TiN-coated left-hand step solid carbide drill | 1.089 | — | — | — | 118° | View full callout |
| HDCS636-1273 | TiN-coated left-hand step solid carbide drill | 1.089 | — | — | — | 118° | View full callout |
| HDCS636-1274 | TiN-coated left-hand step solid carbide drill | 0.885 | — | — | — | 155° | View full callout |
| HDCS636-1275 | TiN-coated left-hand step solid carbide drill | 0.887 | — | — | — | 155° | View full callout |
| HDCS636-1276 | TiN-coated left-hand step solid carbide drill | 0.883 | — | — | — | 118° | View full callout |
| HDCS636-1278 | TiN-coated left-hand step solid carbide drill | 0.895 | — | — | — | 160° | View full callout |
| HDCS636-1279 | TiN-coated left-hand step solid carbide drill | 1.092 | — | — | — | 120° | View full callout |
| HDCS636-1280 | TiN-coated left-hand step solid carbide drill | 0.895 | — | — | — | 160° | View full callout |
| HDCS636-1283 | TiN-coated left-hand step solid carbide drill | 1.082 | — | — | — | 120° | View full callout |
| HDCS636-1284 | TiN-coated left-hand step solid carbide drill | 0.887 | — | — | — | 150° | View full callout |
| HDCS636-1285 | TiN-coated left-hand step solid carbide drill | 1.14 | — | — | — | 118° | View full callout |
| HDCS636-1286 | TiN-coated left-hand step solid carbide drill | 0.891 | — | — | — | 150° | View full callout |
| HDCS636-1289 | TiN-coated left-hand step solid carbide drill | 1.295 | — | — | — | 118° | View full callout |
| HDCS636-1290 | TiN-coated left-hand step solid carbide drill | 0.885 | — | — | — | 150° | View full callout |
| HDCS636-1291 | TiN-coated left-hand step solid carbide drill | 0.89 | — | — | — | 160° | View full callout |
| HDCS636-1292 | TiN-coated left-hand step solid carbide drill | 1.01 | — | — | — | 160° | View full callout |
| HDCS636-1293 | TiN-coated left-hand step solid carbide drill | 0.89 | — | — | — | 160° | View full callout |
| HDCS636-1295 | TiN-coated left-hand step solid carbide drill | 0.716 | — | — | — | 118° | View full callout |
| HDCS636-1296 | TiN-coated left-hand step solid carbide drill | 0.888 | — | — | — | 150° | View full callout |
| HDCS636-1299 | TiN-coated left-hand step solid carbide drill | 1.086 | — | — | — | 150° | View full callout |
| HDCS636-1300 | TiN-coated left-hand step solid carbide drill | 0.893 | — | — | — | 150° | View full callout |
| HDCS636-1301 | TiN-coated left-hand step solid carbide drill | 0.885 | — | — | — | 155° | View full callout |
| HDCS636-1302 | TiN-coated left-hand step solid carbide drill | 0.89 | — | — | — | 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.