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MITUTOYO 137-203 spear caliper with extensions 50-500mm

Supplier number: MITUTOYO 137-203 | EAN 4946368438344
541.60 tax incl.
€447.60 excl. VAT (incl. all environmental contributions)
On order: delivered from 10/10/2026
set

  • Ordered before 20:00 - delivered as of 10/10/2026
  • Free shipping
  • Delivery by DHL
  • Delivered from Belgium

Accurate internal measurements with Mitutoyo

Practical benefits
  • Versatile modular measuring range: You easily cover dimensions from 50 mm to 500 mm by combining the interchangeable extension rods.
  • Precise vernier graduation scale: The fine 0.01 mm graduation enables you to inspect bores, cylinders, and internal diameters with precision.
  • Secure spindle locking mechanism: You lock the measurement firmly in place to prevent accidental shifting while reading the results.

In a nutshell

The right choise for

With the Mitutoyo 137-203 IMZ-500 inside micrometer, you accurately measure internal dimensions of cylinders, bores, rings, and parallel surfaces. Thanks to the included set of 6 extension rods, you easily adjust your measuring range from 50 mm to 500 mm without needing multiple individual micrometers. The micrometer head provides 13 mm of travel and a clear 0.01 mm graduation scale for precise readings. The integrated locking clamp firmly secures the spindle in place, allowing you to inspect tolerances reliably during machining and quality control operations.



€541.60
tax incl.

Product information

Key features according to our expert

  • Micrometer type: Inside micrometer
  • Min. measuring value: 50 mm
  • Max. measuring value: 500 mm
  • Scale division: 0,01 mm mm

Product description:

  • This is an extension rod type inside micrometer that offers you the following benefits:
    • Interchangeable extensions with cylindrical gage rods are spring-mounted in protective sleeves so you can extend the measuring range.
    • Carbide measuring faces are available.

All Features

Micrometer type
Inside micrometer
Min. measuring value
50 mm
Max. measuring value
500 mm
Scale division
0,01 mm mm
  • Brand MITUTOYO
  • EAN 4946368438344
  • Supplier number MITUTOYO 137-203

Frequently asked questions about this product

Answered by specialists
What is the measuring range of this inside micrometer?
The measuring range is 50 mm to 500 mm using the included extension rods.
What graduation does this micrometer set provide?
The vernier scale has a graduation of 0.01 mm for accurate internal measurements.
Which extension rods are included in the set?
The set includes 6 extension rods: 13 mm, 25 mm, 50 mm (2 pcs), 100 mm, and 200 mm.
What is the travel range of the micrometer head?
The micrometer head has a travel range of 13 mm.
What applications is this measuring tool suited for?
You use it to accurately measure inside dimensions of cylinders, bores, rings, and parallel surfaces.
Questions about this product?

Our product specialists are happy to help with any questions about this range. Call, email or chat with us!

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