For process engineers
The table is a production record, not a sales range.
HDC636 — TiN-coated left-hand solid carbide drill
A real production series with 997 standard part numbers. The table below is taken from the geometry we have actually ground and shipped.

- Part numbers in series
- 997
- Diameter span
- 0.15–3.72 mm
- Coating
- TiN
What the catalogue commits to
Production capability
Min. diameter 0.15 mm
Typical application
Left-hand drilling for high-speed PCB and precision drilling equipment.
Part numbers in HDC636
997 part numbersFilter this series further
| Part no. | Description | D1 mm | Flute mm | Shank mm | OAL mm | Point | Geometry |
|---|---|---|---|---|---|---|---|
| HDC636-2500-01Repeat order | TiN-coated left-hand solid carbide drill | 2.5 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2510-01Repeat order | TiN-coated left-hand solid carbide drill | 2.51 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2515-01 | TiN-coated left-hand solid carbide drill | 2.515 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2520-01Repeat order | TiN-coated left-hand solid carbide drill | 2.52 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2530-01 | TiN-coated left-hand solid carbide drill | 2.53 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2540-01 | TiN-coated left-hand solid carbide drill | 2.54 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2545-01 | TiN-coated left-hand solid carbide drill | 2.545 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2546-01-01 | TiN-coated left-hand solid carbide drill | 2.546 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2550-01Repeat order | TiN-coated left-hand solid carbide drill | 2.55 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2550-01-02 | TiN-coated left-hand solid carbide drill | 2.55 | 12 | 3.2 | 38 | 155° | Standard |
| HDC636-2550-01-03 | TiN-coated left-hand solid carbide drill | 2.55 | 12 | 3.2 | 38 | 160° | Standard |
| HDC636-2560-01-01Repeat order | TiN-coated left-hand solid carbide drill | 2.56 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2560-01-02 | TiN-coated left-hand solid carbide drill | 2.56 | 12 | 3.2 | 38 | 155° | Standard |
| HDC636-2560-01-03 | TiN-coated left-hand solid carbide drill | 2.56 | 12 | 3.2 | 38 | 160° | Standard |
| HDC636-2560-05 | Bronze-coated left-hand solid carbide drill | 2.56 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2570-01 | TiN-coated left-hand solid carbide drill | 2.57 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2570-01-02 | TiN-coated left-hand solid carbide drill | 2.57 | 12 | 3.2 | 38 | 160° | Standard |
| HDC636-2570-01-03 | TiN-coated left-hand solid carbide drill | 2.57 | 12 | 3.2 | 38 | 155° | Standard |
| HDC636-2580-01 | TiN-coated left-hand solid carbide drill | 2.58 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2580-01-01 | TiN-coated left-hand solid carbide drill | 2.58 | 12 | 3.2 | 38 | 160° | Standard |
| HDC636-2580-01-02 | TiN-coated left-hand flat-bottom solid carbide drill | 2.58 | — | — | — | 180° | View full callout |
| HDC636-2590-01 | TiN-coated left-hand solid carbide drill | 2.59 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2595-01 | TiN-coated left-hand solid carbide drill | 2.595 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2600-01 | TiN-coated left-hand solid carbide drill | 2.6 | 10 | 3.2 | 38 | 118° | Standard |
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.