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 |
|---|---|---|---|---|---|---|---|
| HDC636-3685-01 | TiN-coated left-hand solid carbide drill | 3.685 | 20 | 4 | 50 | 160° | Standard |
| HDC636-3690-01 | TiN-coated left-hand solid carbide drill | 3.69 | 20 | 4 | 50 | 160° | Standard |
| HDC636-3690-01-01 | TiN-coated left-hand solid carbide drill | 3.69 | 20 | 4 | 50 | 118° | Standard |
| HDC636-3695-01 | TiN-coated left-hand solid carbide drill | 3.695 | 20 | 4 | 50 | 160° | Standard |
| HDC636-3697-01 | TiN-coated left-hand solid carbide drill | 3.697 | 18 | 4 | 50 | 140° | Standard |
| HDC636-3700-01 | TiN-coated left-hand solid carbide drill (X) | 3.7 | 20 | 4 | 50 | 160° | Standard |
| HDC636-3700-01-01Repeat order | TiN-coated left-hand solid carbide drill (X) | 3.7 | 20 | 4 | 50 | 118° | Standard |
| HDC636-3705-01-01 | TiN-coated left-hand solid carbide drill | 3.705 | 20 | 4 | 50 | 150° | Standard |
| HDC636-3705-01-02 | TiN-coated left-hand solid carbide drill | 3.705 | 20 | 4 | 50 | 118° | Standard |
| HDC636-3710-01 | TiN-coated left-hand solid carbide drill | 3.71 | 20 | 4 | 50 | 160° | Standard |
| HDC636-3710-01-01 | TiN-coated left-hand solid carbide drill | 3.71 | — | — | — | 150° | View full callout |
| HDC636-3720-01 | TiN-coated left-hand solid carbide drill | 3.72 | 20 | 4 | 50 | 160° | Standard |
| HDC636-3720-01-01 | TiN-coated left-hand solid carbide drill | 3.72 | 20 | 4 | 50 | 150° | 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.