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MAHR

Mahr is a German manufacturer of dimensional metrology and surface measurement instruments, with a history dating back to the 1860s. The company produces hand tools, benchtop gauges, and portable measurement systems used in production and quality-control environments. Its product families include dial and digital calipers, dial test indicators, surface roughness testers, and related probes and accessories. These instruments are used across metalworking, automotive, aerospace, medical-device manufacturing, and general industrial quality assurance. Mahr instruments are built to withstand shop-floor conditions; for example, certain digital calipers carry an IP67 rating for protection against dust and water ingress, and are available with SPC output for data collection. Measurement ranges and graduations vary by model: dial test indicators may offer ranges such as 0 to 0.03 in with 0.0004 in graduation, while digital calipers can provide 0 to 6 in / 0 to 150 mm range with 0.0005 in / 0.01 mm resolution and accuracy of ±0.001 in. Surface roughness testers, such as the MarSurf PS10 and M310, use inductive or piezo probes with measurement ranges of 2 microns or 10 microns, depending on the probe type. 3G Electric supplies Mahr instruments and accessories globally, supporting procurement and maintenance teams with access to calipers, indicators, probes, and replacement parts. The catalog includes items such as the MarTest 801 S1 horizontal dial test indicator, carbide-jaw and ceramic-jaw digital calipers with SPC output, and inductive probes for MarSurf PS10/M310 and Pocket Surf instruments. 3G Electric provides logistics support and quotation services for these products, helping buyers specify the correct model and accessories for their measurement tasks.

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About MAHR

Mahr is a German manufacturer of dimensional metrology and surface measurement instruments, with a history dating back to the 1860s. The company produces hand tools, benchtop gauges, and portable measurement systems used in production and quality-control environments. Its product families include dial and digital calipers, dial test indicators, surface roughness testers, and related probes and accessories. These instruments are used across metalworking, automotive, aerospace, medical-device manufacturing, and general industrial quality assurance. Mahr instruments are built to withstand shop-floor conditions; for example, certain digital calipers carry an IP67 rating for protection against dust and water ingress, and are available with SPC output for data collection. Measurement ranges and graduations vary by model: dial test indicators may offer ranges such as 0 to 0.03 in with 0.0004 in graduation, while digital calipers can provide 0 to 6 in / 0 to 150 mm range with 0.0005 in / 0.01 mm resolution and accuracy of ±0.001 in. Surface roughness testers, such as the MarSurf PS10 and M310, use inductive or piezo probes with measurement ranges of 2 microns or 10 microns, depending on the probe type. 3G Electric supplies Mahr instruments and accessories globally, supporting procurement and maintenance teams with access to calipers, indicators, probes, and replacement parts. The catalog includes items such as the MarTest 801 S1 horizontal dial test indicator, carbide-jaw and ceramic-jaw digital calipers with SPC output, and inductive probes for MarSurf PS10/M310 and Pocket Surf instruments. 3G Electric provides logistics support and quotation services for these products, helping buyers specify the correct model and accessories for their measurement tasks.

Common Applications

  • Metalworking — Mahr MarTest 801 S1 dial test indicator for measuring small displacements on machine tools
  • Automotive — Mahr carbide-jaw digital caliper with SPC output for dimensional inspection of machined components
  • Aerospace — Mahr ceramic-jaw digital caliper for non-marring measurement of sensitive surfaces
  • Quality control — Mahr inductive probes for MarSurf PS10/M310 surface roughness testers on machined parts
  • General manufacturing — Mahr Pocket Surf piezo probes for surface finish analysis in production environments
  • Inspection — Mahr wide groove probe for surface roughness measurement on recessed features and grooves

Frequently asked questions

Common questions about MAHR from 3G Electric.

What is the measurement range and graduation of the Mahr MarTest 801 S1 horizontal dial test indicator?

The Mahr MarTest 801 S1 horizontal dial test indicator (MPN 4305960) has a measurement range of 0 to 0.03 in and a graduation of 0.0004 in. It features a horizontal, tilted-face dial for reading in confined spaces. The indicator includes a 3/8 in mounting stem and a spanner wrench. It is used for measuring small displacements in inspection and setup tasks.

Are Mahr digital calipers with SPC output suitable for harsh environments?

Yes. Mahr digital calipers with SPC output are available with an IP67 rating, which protects against dust and water ingress. For example, the carbide-jaw 4-way digital caliper (MPN 4103073) and ceramic-jaw 4-way digital caliper (MPN 4103072) both have IP67 protection and measure outside, inside, depth, and step dimensions. They offer a range of 0 to 6 in / 0 to 150 mm, resolution of 0.0005 in / 0.01 mm, and accuracy of ±0.001 in. The SPC output allows connection to data collection systems.

Which Mahr surface roughness testers are compatible with the inductive probes?

The inductive surface roughness probes (MPNs 6111520, 6111526, and 6111524) are compatible with Mahr MarSurf PS10 and M310 instruments. These probes have a 2 micron measurement range. The wide groove probe (MPN 6111524) is designed for measurement on wide grooves and recessed features. These probes are used for surface finish verification on machined parts in quality control.

What is the difference between the Mahr Pocket Surf piezo probes?

The Mahr Pocket Surf piezo probes differ in measurement range. MPN 2008010 has a 10 micron measurement range, while MPN 2008011 has a 2 micron measurement range. Both are general-purpose probes compatible with the Mahr Pocket Surf instrument. They are used for surface roughness measurement in industrial quality control and manufacturing environments. Selection depends on the required range for the surface finish specification.

Can 3G Electric supply Mahr calipers and probes globally?

Yes. 3G Electric supplies Mahr instruments and accessories to customers worldwide. The catalog includes dial test indicators, digital calipers, surface roughness tester probes, and related items. 3G Electric provides quotation and logistics support for these products, helping procurement and maintenance teams obtain the correct Mahr parts for their measurement applications.

Does 3G Electric supply MAHR products?

Yes — 3G Electric (S) Pte. Ltd. supplies MAHR products. We stock the MAHR catalog and supply genuine factory-original products with full manufacturer warranty and technical support.