Internal and external dimensions
Configure measuring arms and contacts for comparative measurement of internal diameters, external diameters or widths. Set the instrument with a suitable dimensional reference.
Precision Gages · Mahr
Universal Measuring Instruments
Mahr Multimar instruments provide configurable measurement options for features that need specialised contact access. Compare the 25 EWR digital universal caliper and 844 T universal measuring instrument for your component geometry.
What can you measure?
Groove and recess dimensions
Measure accessible groove widths, recess diameters and related features using application-specific contacts. Confirm clearance and the intended contact positions.
Distances between defined contacts
Compare dimensions between shoulders, faces or other accessible features using a suitable contact arrangement. Contact geometry determines the dimension represented by the reading.
Explore the product family
Models and measurement options
| Model / option | Range or configuration | Selection notes |
|---|---|---|
| 25 EWR | 300 / 600 mm | Digital universal caliper with data output; listed in case. |
| 844 T | Listed configurations: 30–115 / 110–265 mm | Universal measuring instrument. Usable internal/external range depends on the selected setup. |
Ranges refer to specific variants or sets. Confirm the exact model, configuration and accessories with your quotation. Display resolution is not a statement of measurement accuracy.
What to consider before choosing
Feature access
Share a drawing or photograph showing the measuring points and clearance.
Contact configuration
Choose arms, anvils and attachments around the feature, rather than range alone.
Complete instrument
Confirm the indicator and attachments included with an 844 T quotation.
Frequently asked questions
When should I consider Multimar instead of a standard caliper?
Consider Multimar when grooves, recesses, shoulders or other features need a specialised contact arrangement. Provide the drawing and measuring points so the required arms and contacts can be selected.
Which measuring range applies to an 844 T configuration?
The usable span depends on whether you are measuring internally or externally and on the selected arms and contacts. Do not use one published span for every setup; ask for the working range of the complete proposed configuration.
What should a complete Multimar quotation include?
Specify the basic instrument, measuring arms, contacts, indicating instrument where required, and setting arrangement. Include the feature drawing so the quoted accessories support the intended measurement.
Start with your component
Discuss universal measuring instruments
Drawing, internal or external feature, contact access, nominal dimension and tolerance.
Model availability, accessories and lead time are confirmed with the quotation.
Range references: . Manufacturer-listed systems and options are subject to India availability and configuration confirmation.
Product photographs: Mahr. Images illustrate product families; supplied equipment and accessories depend on the selected configuration.