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 |
|---|---|---|---|---|---|---|---|
| HDCS636-0719 | TiN-coated left-hand step solid carbide drill | 0.885 | — | — | — | 150° | View full callout |
| HDCS636-0720 | TiN-coated left-hand step solid carbide drill | 0.72 | — | — | — | 150° | View full callout |
| HDCS636-0721 | TiN-coated left-hand step solid carbide drill | 0.905 | — | — | — | 118° | View full callout |
| HDCS636-0723 | TiN-coated left-hand step solid carbide drill | 0.882 | — | — | — | 118° | View full callout |
| HDCS636-0725 | TiN-coated left-hand step solid carbide drill | 0.715 | — | — | — | 150° | View full callout |
| HDCS636-0729 | TiN-coated left-hand step solid carbide drill | 1.083 | — | — | — | 155° | View full callout |
| HDCS636-0730 | TiN-coated left-hand step solid carbide drill | 1.088 | — | — | — | 155° | View full callout |
| HDCS636-0731 | TiN-coated left-hand step solid carbide drill | 1.086 | — | — | — | 155° | View full callout |
| HDCS636-0732 | TiN-coated left-hand step solid carbide drill | 0.887 | — | — | — | 150° | View full callout |
| HDCS636-0733 | TiN-coated left-hand step solid carbide drill | 0.886 | — | — | — | 150° | View full callout |
| HDCS636-0734 | TiN-coated left-hand step solid carbide drill | 0.887 | — | — | — | 150° | View full callout |
| HDCS636-0735 | TiN-coated left-hand step solid carbide drill | 0.88 | — | — | — | 118° | View full callout |
| HDCS636-0736 | TiN-coated left-hand step solid carbide drill | 0.885 | — | — | — | 155° | View full callout |
| HDCS636-0737 | TiN-coated left-hand step solid carbide drill | 1.088 | — | — | — | 160° | View full callout |
| HDCS636-0738 | TiN-coated left-hand step solid carbide drill | 1.088 | — | — | — | 160° | View full callout |
| HDCS636-0739 | TiN-coated left-hand step solid carbide drill | 0.892 | — | — | — | 160° | View full callout |
| HDCS636-0740 | TiN-coated left-hand step solid carbide drill | 1.088 | — | — | — | 160° | View full callout |
| HDCS636-0741 | TiN-coated left-hand step solid carbide drill | 0.893 | — | — | — | 160° | View full callout |
| HDCS636-0742 | TiN-coated left-hand step solid carbide drill | 0.888 | — | — | — | 160° | View full callout |
| HDCS636-0743 | TiN-coated left-hand step solid carbide drill | 1.095 | — | — | — | 118° | View full callout |
| HDCS636-0745 | TiN-coated left-hand step solid carbide drill | 0.89 | — | — | — | 150° | View full callout |
| HDCS636-0746 | TiN-coated left-hand step solid carbide drill | 0.887 | — | — | — | 150° | View full callout |
| HDCS636-0747 | TiN-coated left-hand step solid carbide drill | 0.885 | — | — | — | 150° | View full callout |
| HDCS636-0748 | TiN-coated left-hand step solid carbide drill | 1.098 | — | — | — | 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.