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 |
|---|---|---|---|---|---|---|---|
| HDCS636-1617 | TiN-coated left-hand step solid carbide drill | 1.09 | — | — | — | 152° | View full callout |
| HDCS636-1620 | TiN-coated left-hand step solid carbide drill | 0.87 | — | — | — | 120° | View full callout |
| HDCS636-1623 | TiN-coated left-hand step solid carbide drill | 0.874 | — | — | — | 118° | View full callout |
| HDCS636-1625 | TiN-coated left-hand step solid carbide drill | 2.39 | — | — | — | 120° | View full callout |
| HDCS636-1627 | TiN-coated left-hand step solid carbide drill | 1.093 | — | — | — | 160° | View full callout |
| HDCS636-1628 | TiN-coated left-hand step solid carbide drill | 1.087 | — | — | — | 118° | View full callout |
| HDCS636-1630 | TiN-coated left-hand step solid carbide drill | 0.89 | — | — | — | 118° | View full callout |
| HDCS636-1631 | TiN-coated left-hand step solid carbide drill | 1.09 | — | — | — | 118° | View full callout |
| HDCS636-1632 | TiN-coated left-hand step solid carbide drill | 0.91 | — | — | — | 120° | View full callout |
| HDCS636-1633 | TiN-coated left-hand step solid carbide drill | 1.09 | — | — | — | 118° | View full callout |
| HDCS636-1634 | TiN-coated left-hand step solid carbide drill | 1.265 | — | — | — | 118° | View full callout |
| HDCS636-1636 | TiN-coated left-hand step solid carbide drill | 1.087 | — | — | — | 160° | View full callout |
| HDCS636-1638 | TiN-coated left-hand step solid carbide drill | 0.885 | — | — | — | 150° | View full callout |
| HDCS636-1640 | TiN-coated left-hand step solid carbide drill | 0.915 | — | — | — | 160° | View full callout |
| HDCS636-1645 | TiN-coated left-hand step solid carbide drill | 0.915 | — | — | — | 118° | View full callout |
| HDCS636-1649 | TiN-coated left-hand step solid carbide drill | 1.285 | — | — | — | 118° | View full callout |
| HDCS636-1651 | TiN-coated left-hand step solid carbide drill | 1.085 | — | — | — | 150° | View full callout |
| HDCS636-1653 | TiN-coated left-hand step solid carbide drill | 0.89 | — | — | — | 118° | View full callout |
| HDCS636-1654 | TiN-coated left-hand step solid carbide drill | 1.084 | — | — | — | 160° | View full callout |
| HDCS636-1655 | TiN-coated left-hand step solid carbide drill | 0.916 | — | — | — | 118° | View full callout |
| HDCS636-1656 | TiN-coated left-hand step solid carbide drill | 0.855 | — | — | — | 160° | View full callout |
| HDCS636-1658 | TiN-coated left-hand step solid carbide drill | 1.292 | — | — | — | 160° | View full callout |
| HDCS636-1659 | TiN-coated left-hand step solid carbide drill | 1.085 | — | — | — | 120° | View full callout |
| HDCS636-1660 | TiN-coated left-hand step solid carbide drill | 1.097 | — | — | — | 120° | 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.