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 |
|---|---|---|---|---|---|---|---|
| HDCS636-0834 | TiN-coated left-hand step solid carbide drill | 1.455 | — | — | — | 118° | View full callout |
| HDCS636-0835 | TiN-coated left-hand step solid carbide drill | 0.892 | — | — | — | 160° | View full callout |
| HDCS636-0836 | TiN-coated left-hand step solid carbide drill | 1.455 | — | — | — | 60° | View full callout |
| HDCS636-0837 | TiN-coated left-hand step solid carbide drill | 1.085 | — | — | — | 118° | View full callout |
| HDCS636-0838 | TiN-coated left-hand step solid carbide drill | 1.093 | — | — | — | 118° | View full callout |
| HDCS636-0840 | TiN-coated left-hand step solid carbide drill | 0.888 | — | — | — | 118° | View full callout |
| HDCS636-0842 | TiN-coated left-hand step solid carbide drill | 0.892 | — | — | — | 160° | View full callout |
| HDCS636-0849 | TiN-coated left-hand step solid carbide drill | 1.845 | — | — | — | 120° | View full callout |
| HDCS636-0850 | TiN-coated left-hand step solid carbide drill | 1.85 | — | — | — | 120° | View full callout |
| HDCS636-0851 | TiN-coated left-hand step solid carbide drill | 1.46 | — | — | — | 118° | View full callout |
| HDCS636-0852 | TiN-coated left-hand step solid carbide drill | 1.111 | — | — | — | 118° | View full callout |
| HDCS636-0853 | TiN-coated left-hand step solid carbide drill | 0.8 | — | — | — | 118° | View full callout |
| HDCS636-0854 | TiN-coated left-hand step solid carbide drill | 1.845 | — | — | — | 120° | View full callout |
| HDCS636-0855 | TiN-coated left-hand step solid carbide drill | 0.905 | — | — | — | 160° | View full callout |
| HDCS636-0857 | TiN-coated left-hand step solid carbide drill | 1.84 | — | — | — | 118° | View full callout |
| HDCS636-0858 | TiN-coated left-hand step solid carbide drill | 1.845 | — | — | — | 120° | View full callout |
| HDCS636-0859 | TiN-coated left-hand step solid carbide drill | 1.85 | — | — | — | 120° | View full callout |
| HDCS636-0860 | TiN-coated left-hand step solid carbide drill | 0.887 | — | — | — | 150° | View full callout |
| HDCS636-0862 | TiN-coated left-hand step solid carbide drill | 0.885 | — | — | — | 150° | View full callout |
| HDCS636-0863 | TiN-coated left-hand step solid carbide drill | 0.887 | — | — | — | 150° | View full callout |
| HDCS636-0868 | TiN-coated left-hand step solid carbide drill | 1.46 | — | — | — | 118° | View full callout |
| HDCS636-0870 | TiN-coated left-hand step solid carbide drill | 0.915 | — | — | — | 160° | View full callout |
| HDCS636-0871 | TiN-coated left-hand step solid carbide drill | 1.093 | — | — | — | 118° | View full callout |
| HDCS636-0875 | TiN-coated left-hand step solid carbide drill | 0.722 | — | — | — | 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.