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 |
|---|---|---|---|---|---|---|---|
| HDC636-2600-01-02Repeat order | TiN-coated left-hand solid carbide drill | 2.6 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2600-01-03 | TiN-coated left-hand solid carbide drill | 2.6 | 12 | 3.2 | 38 | 160° | Standard |
| HDC636-2610-01 | TiN-coated left-hand solid carbide drill | 2.61 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2620-01 | TiN-coated left-hand solid carbide drill | 2.62 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2630-01 | TiN-coated left-hand solid carbide drill | 2.63 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2645-01 | TiN-coated left-hand solid carbide drill | 2.645 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2650-01 | TiN-coated left-hand solid carbide drill | 2.65 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2660-01 | TiN-coated left-hand solid carbide drill | 2.66 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2670-01 | TiN-coated left-hand solid carbide drill | 2.67 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2680-01-01 | TiN-coated left-hand solid carbide drill | 2.68 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2690-01-01 | TiN-coated left-hand solid carbide drill | 2.69 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2700-01Repeat order | TiN-coated left-hand solid carbide drill | 2.7 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2710-01 | TiN-coated left-hand solid carbide drill | 2.71 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2720-01 | TiN-coated left-hand solid carbide drill | 2.72 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2730-01 | TiN-coated left-hand solid carbide drill | 2.73 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2740-01 | TiN-coated left-hand solid carbide drill | 2.74 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2740-01-01 | TiN-coated left-hand solid carbide drill | 2.74 | 12 | 3.2 | 38 | 150° | Standard |
| HDC636-2745-01 | TiN-coated left-hand solid carbide drill | 2.745 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2750-01Repeat order | TiN-coated left-hand solid carbide drill | 2.75 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2750-01-01 | TiN-coated left-hand solid carbide drill | 2.75 | 12 | 3.2 | 38 | 150° | Standard |
| HDC636-2750-01-03 | TiN-coated left-hand solid carbide drill | 2.75 | 5 | 3.2 | 38 | 118° | Standard |
| HDC636-2750-01-05 | TiN-coated left-hand solid carbide drill | 2.75 | 12 | 3.2 | 38 | 155° | Standard |
| HDC636-2760-01Repeat order | TiN-coated left-hand solid carbide drill | 2.76 | 12 | 3.2 | 38 | 118° | Standard |
| HDC636-2760-01-01 | TiN-coated left-hand solid carbide drill | 2.76 | 12 | 3.2 | 38 | 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.