For process engineers
The table is a production record, not a sales range.
CM426 — Black-coated helical solid carbide reamer
A real production series with 158 standard part numbers. The table below is taken from the geometry we have actually ground and shipped.

- Part numbers in series
- 158
- Diameter span
- 0.14–9.56 mm
- Coating
- Black
What the catalogue commits to
Production capability
Min. diameter 0.15 mm
Typical application
Helical reaming to finished hole tolerance.
Part numbers in CM426
158 part numbersFilter this series further
| Part no. | Description | D1 mm | Flute mm | Shank mm | OAL mm | Point | Geometry |
|---|---|---|---|---|---|---|---|
| CM426-0770-04-01 | Black-coated helical solid carbide reamer | 0.77 | 4.23 | 3 | 40 | 118° | Standard |
| CM426-0770-04-02 | DLC-coated helical solid carbide reamer | 0.77 | — | — | — | — | View full callout |
| CM426-0775-13-01 | Bronze-coated solid carbide reamer | 0.775 | — | — | — | — | View full callout |
| CM426-0780-04 | Black-coated helical solid carbide reamer | 0.78 | — | — | — | — | View full callout |
| CM426-0800-04-01 | Black-coated helical solid carbide reamer | 0.8 | — | — | — | — | View full callout |
| CM426-0800-04-03 | Black-coated helical solid carbide reamer | 0.8 | — | — | — | — | View full callout |
| CM426-0820-02 | Black-coated helical solid carbide reamer | 0.82 | 10 | 1.5 | 40 | 118° | Standard |
| CM426-0820-04-01 | Black-coated helical solid carbide reamer | 0.82 | — | — | — | — | View full callout |
| CM426-0890-04 | Black-coated helical solid carbide reamer | 0.89 | — | — | — | — | View full callout |
| CM426-0900-04 | Black-coated helical solid carbide reamer | 0.9 | — | — | — | — | View full callout |
| CM426-0980-04-01 | Black-coated helical solid carbide reamer | 0.98 | — | — | — | — | View full callout |
| CM426-0980-04-02 | Black-coated helical solid carbide reamer | 0.98 | — | — | — | — | View full callout |
| CM426-0985-02 | Black-coated helical solid carbide reamer | 0.985 | — | — | — | — | View full callout |
| CM426-0990-04 | Black-coated solid carbide reamer | 0.99 | — | — | — | — | View full callout |
| CM426-0990-04-01 | Black-coated helical solid carbide reamer | 0.99 | — | — | — | — | View full callout |
| CM426-0995-03-01 | Bronze-coated solid carbide reamer | 0.995 | — | — | — | — | View full callout |
| CM426-1000-03-01 | Bronze-coated helical solid carbide reamer | 1 | — | — | — | — | View full callout |
| CM426-1000-03-02 | Bronze-coated helical solid carbide reamer | 1 | — | — | — | — | View full callout |
| CM426-1000-03-03 | Coated solid carbide reamer | 1 | — | — | — | — | View full callout |
| CM426-1000-03-05 | Bronze-coated helical solid carbide reamer | 1 | — | — | — | — | View full callout |
| CM426-1000-04-01 | Black-coated helical solid carbide reamer | 1 | — | — | — | — | View full callout |
| CM426-1000-04-02 | Black-coated helical solid carbide reamer | 1 | — | — | — | 90° | View full callout |
| CM426-1000-04-03 | Black-coated helical solid carbide reamer | 1 | — | — | — | 90° | View full callout |
| CM426-1000-04-04 | Black-coated solid carbide reamer | 1 | — | — | — | — | 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.