Beschrijving
Select Instelring, ø1.2 mm, DIN 2250 vorm C, Class 1 to 4mm is a precision hole master ring used as a zero reference for internal measuring instruments — three-point internal micrometers (Mitutoyo Holtest, TESA Imicro, Mitutoyo Borematic) and hole gauges that require a known-diameter master for calibration.
DIN 2250 vorm C is the ring-form variant of the gauge block standard family. The vorm C designation distinguishes the design from vorm A and vorm B; vorm C is the standard inspection bench configuration.
The accuracy specification ”Class 1 to 4mm” is the tolerance band declared by the manufacturer. Hardened steel construction: the ID surface is precision ground after heat treatment.
Common applications: zero-setting reference for three-point internal micrometers, calibration master for hole gauges with a meetklok, periodic accuracy verification of internal measuring instruments. Combine with the Mitutoyo gauge block maintenance kit (article 64-516650).
Eigenschappen
- Select Instelring, ø1.2 mm
- DIN 2250 vorm C — standard inspection bench configuration
- Nauwkeurigheid: Class 1 to 4mm
- Precision ground internal diameter
- Hardened steel — long-life calibration reference
- Zero reference for internal measuring instruments
Specificaties
| Type | Instelring (DIN 2250 vorm C) |
|---|---|
| Diameter | ø1.2 mm |
| Nauwkeurigheid | Class 1 to 4mm |
| Standaard | DIN 2250 vorm C |
| Artikelnummer | 64-830002 |
Compatibele accessoires
Mitutoyo gauge block maintenance kit (article 64-516650). Mitutoyo Holtest, TESA Imicro and Mitutoyo Borematic internal micrometers.

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