Mahr Inc

Providence,  RI 
United States
  • Booth: 1835

Mahr Inc., “The Application Specialist” and a member of the Mahr Group, has been providing dimensional measurement solutions to fit customer application needs for over 150 years. We offer calipers, micrometers, dial and digital indicators; mechanical, plug, air, and electronic gages; height gages, measuring microscopes and dimensional standards; calibration systems and lab gages; form, surface roughness and contour; gear and shaft measurement systems; custom design and build gages; gage repair, calibration, and field services. Mahr is registered to ISO 9001:2008 by National Quality Assurance and accredited to ISO 17025:2005.

Mahr measuring instruments are used to measure minute length, form and surface deviations on workpieces in precision manufacturing, in mechanical, precision and optical engineering, and in science and research. Mahr’s innovative measuring instruments pave the way for further technical and scientific development.


  • MarShaft SCOPE 250 Plus
    The MarShaft SCOPE 250 plus is a flexible optical system for shop floor measurement of small rotationally symmetrical parts....

  • The MarShaft SCOPE 250 plus is a flexible optical system designed to provide fast, accurate, and fully automatic measurement of smaller shafts and turned parts, directly on the shop floor. It features a highly accurate matrix camera with four million pixels and measures parts up to 250 mm in length and 40 mm in diameter. The MarShaft SCOPE 250 plus has an MPE (Maximum Permissible Error) of less than 1.5 microns + L/40 when measuring diameter, and an even more impressive 3 microns + L/125 when measuring length.

  • MarSurf PS10
    The MarSurf PS 10 from Mahr is a practical roughness measuring unit for mobile use. Two key features are its smartphone-type touch screen and new design....

  • The MarSurf PS 10 from Mahr is a practical roughness measuring unit for mobile use. Using a smartphone-like 4.3" TFT touch screen display, operation is fast, intuitive and user friendly. The new generation MarSurf PS 10 design measures 31 roughness parameters, offers a convenient list of ‘favorite’ functions in the display, and provides laboratory level performance on the shop floor. 

    The range of measuring applications is expanded by the ability to remove the drive unit from the MarSurf PS 10 and operate it separately from the display, providing the user with more flexibility. The drive also incorporates built-in ‘Vees’ to support small diameter parts during the measurement cycle. Optional probes, for different measuring tasks, allow for the measurement of gears and deep measuring points such as in grooves or bores. The large battery pack recharges in 1.5 hours and enables over 1,200 measurements per charge.

    Measuring data from the MarSurf PS 10 can be saved in TXT, X3P, CSV, or PDF formats, as finished measuring records with no additional software. A Mahr calibration certificate is included in the package contents, and error-free measurements are made possible by the integrated and removable calibration standard. When combined with Mahr’s e-Stick wireless data transmission, data collection becomes seamless with MarCom Software.

  • Integrated Wireless Hand Tools
    Micromar 40 EWRi digital micrometers have joined our wireless family of calipers and indicators. Integrating proven wireless technology within these devices provides a transparent and low cost solution for measurement data collection....

  • Wireless integration speeds up the quality assurance process.


    Measuring with MarCal digital calipers, MarCator indicators, and Micromar digital micrometers is simple and efficient. These gages are equipped with ‘Integrated Wireless’ transmission capability that greatly increases speed and flexibility for the user and eliminates costly add-on wireless modules or troublesome cabled systems.  The New Micromar 40EWRi also includes unique features such as large display, tolerance limits, LOCK function and rapid drive measuring spindle.


    To complement its wireless hand tools, Mahr offers FREE MarCom Professional 5.2 Software that enables fast and easy setup of measuring stations with wireless data transfer. Measured values can be transferred into separate MS Excel columns, tables, or files, ensuring the reliability of measurement data documentation or passed on through an integrated virtual interface box to a wide variety of SPC and data analysis software packages.

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