What is the purpose of this Mitutoyo extension rod?

This extension rod increases the measuring depth of compatible bore gauges to measure deep bores accurately.

Which instruments are compatible with the Mitutoyo 953558 extension rod?

It is compatible with Mitutoyo 511 series bore gauges covering a measuring range of 160 to 400 mm.

What are the dimensions of this extension rod?

This rod has an extension length of 500 mm and a diameter of 15 mm.

Can multiple extension rods be joined together?

It is recommended to use only one rod at a time, as connecting multiple rods can cause flexure and measurement errors.

How should a bore gauge with a 500 mm extension rod be positioned?

Use the bore gauge in an upright vertical position to prevent deflection errors during measurement.

MITUTOYO 953558 extension for series 511, 500 mm, 15 mm diameter

Name: MITUTOYO 953558 extension for series 511, 500 mm, 15 mm diameter
Brand: MITUTOYO
SKU: 41976627
Price: 604.4 EUR
Availability: PreOrder

Supplier number: MITUTOYO 953558 | EAN 4946368733210

604.40 tax incl.

€499.50 excl. VAT (incl. all environmental contributions)

On order: delivered from 12/10/2026

Ordered before 20:00 - delivered as of 12/10/2026
Free shipping
Delivery by DHL
Delivered from Belgium

✆ Talk to a specialist

Precise deep-hole measurements with Mitutoyo

Practical benefits

Reach deeper bore locations: With a 500 mm length, you easily extend the reach of your internal measuring equipment inside deep cylinders.
Rigid and stable construction: The 15 mm rod diameter provides structural rigidity so you maintain accurate readings without bending during inspection.
Seamless Series 511 compatibility: You attach this extension rod directly to compatible bore gauges for dependable and backlash-free measuring performance.

In a nutshell

The right choise for

With the Mitutoyo 953558 extension rod, you easily increase the measuring depth of your bore gauge to inspect deep bores and cylinders with confidence. The 500 mm length gives you the reach needed for recessed internal cavities, eliminating the need for a dedicated long-stem measuring tool. Its 15 mm diameter provides structural rigidity, maintaining precise measurement alignment without bending or flexure during inspection. Designed for a direct, backlash-free connection to compatible Mitutoyo 511 series bore gauges with a 160 to 400 mm measuring range, this extension ensures reliable and accurate dimension checks in machining and quality control applications.

Product information FAQ

€604.40

tax incl.

Key features according to our expert

Length: 500 mm

Product description:

These extension rods help you with deep-hole measurement, and offer you the following benefits:
- Using a single, longer extension rod rather than several short ones reduces error. When several extension rods are joined together there is the possibility of small errors arising from the extra joints involved. Therefore it is good practice not to connect more than 2 rods to a bore gauge at any one time.
- You can use extension rods up to 1,000mm.
- If you are using an extension rod longer than 500mm, use the bore gauge in the vertical orientation.
- You can confirm accurate and satisfactory operation after connecting an extension rod.

All Features

Length: 500 mm

Brand MITUTOYO
41976627
EAN 4946368733210
Supplier number MITUTOYO 953558

Frequently asked questions about this product

Answered by specialists

What is the purpose of this Mitutoyo extension rod?: This extension rod increases the measuring depth of compatible bore gauges to measure deep bores accurately.
Which instruments are compatible with the Mitutoyo 953558 extension rod?: It is compatible with Mitutoyo 511 series bore gauges covering a measuring range of 160 to 400 mm.
What are the dimensions of this extension rod?: This rod has an extension length of 500 mm and a diameter of 15 mm.
Can multiple extension rods be joined together?: It is recommended to use only one rod at a time, as connecting multiple rods can cause flexure and measurement errors.
How should a bore gauge with a 500 mm extension rod be positioned?: Use the bore gauge in an upright vertical position to prevent deflection errors during measurement.