What is the measuring range of this inside micrometer?

The measuring range spans from 50 to 1000 mm using the included extension rods.

What graduation does the Mitutoyo 137-204 offer?

The scale graduation provides precise readings of 0.01 mm.

How many extension rods are included in the set?

The set includes 8 extension rods (13, 25, 2x 50, 100, 2x 200, and 300 mm).

What is the travel range of the micrometer head?

The micrometer head has a travel stroke of 13 mm.

What applications is this tubular inside micrometer designed for?

It is designed for accurate internal measurements of cylinders, rings, bores, and parallel surfaces.

MITUTOYO 137-204 spear micrometer with extensions 50-1000 mm

Name: MITUTOYO 137-204 spear micrometer with extensions 50-1000 mm
Brand: MITUTOYO
SKU: 41010768
Price: 715.2 EUR
Availability: PreOrder

Supplier number: MITUTOYO 137-204 | EAN 4946368438351

715.20 tax incl.

€591.07 excl. VAT (incl. all environmental contributions)

On order: delivered from 14/10/2026

set

Ordered before 20:00 - delivered as of 14/10/2026
Free shipping
Delivery by DHL

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Accurate internal measurements with Mitutoyo

Practical benefits

Wide internal measuring range: With the included extension rods, you measure inside dimensions from 50 mm to 1000 mm with precision.
Clear high resolution readout: The 0,01 mm graduation allows you to verify internal cylinder diameters and bores with total confidence.
Flexible modular assembly: You easily combine the micrometer head with different solid extension rods to suit diverse workpiece sizes.

In a nutshell

The right choise for

With the Mitutoyo 137-204 IMZ-1000 tubular inside micrometer, you accurately measure large internal diameters, bores, cylinders, and parallel surfaces. Thanks to the included set of 8 solid extension rods, you flexibly configure the tool to cover an extensive measuring range from 50 to 1000 mm. The micrometer head features a 13 mm travel stroke and a 0.01 mm graduation, giving you total confidence in verifying workpiece dimensions. It delivers the precision and versatility needed for machine shop inspection, toolmaking, and quality assurance.

Product information FAQ

€715.20

tax incl.

Key features according to our expert

Micrometer type: Inside micrometer
Min. measuring value: 50 mm
Max. measuring value: 1000 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: 1000 mm
Scale division: 0,01 mm mm

Brand MITUTOYO
41010768
EAN 4946368438351
Supplier number MITUTOYO 137-204

Frequently asked questions about this product

Answered by specialists

What is the measuring range of this inside micrometer?: The measuring range spans from 50 to 1000 mm using the included extension rods.
What graduation does the Mitutoyo 137-204 offer?: The scale graduation provides precise readings of 0.01 mm.
How many extension rods are included in the set?: The set includes 8 extension rods (13, 25, 2x 50, 100, 2x 200, and 300 mm).
What is the travel range of the micrometer head?: The micrometer head has a travel stroke of 13 mm.
What applications is this tubular inside micrometer designed for?: It is designed for accurate internal measurements of cylinders, rings, bores, and parallel surfaces.