What is this Mitutoyo extension rod used for?

It extends the reach or measuring depth of compatible dial indicators and contact points.

What is the length of this extension rod?

This extension rod has a length of 25 mm.

What thread size does the Mitutoyo 21AAA259B use?

The extension rod features an M2.5 x 0.45 male thread and an M2.5 x 0.45 female thread.

Can you connect multiple extension rods together?

Yes, the male and female thread design allows you to screw compatible Mitutoyo rods together.

MITUTOYO 21AAA259B extension piece 25 mm

Name: MITUTOYO 21AAA259B extension piece 25 mm
Brand: MITUTOYO
SKU: 41947065
Price: 13.24 EUR
Availability: PreOrder

Supplier number: MITUTOYO 21AAA259B | EAN 4946368821078

13.24 tax incl.

€10.94 excl. VAT (incl. all environmental contributions)

On order: delivered from 09/10/2026

Ordered before 20:00 - delivered as of 09/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL
Delivered from Belgium

✆ Talk to a specialist

Accurate reach with the Mitutoyo extension

Practical benefits

Extended measuring depth easily: With a 25 mm length, you easily reach recessed surfaces and deeper measurement points.
Stable and secure fitting: Precision threading ensures your contact point stays rigidly attached without sacrificing measurement accuracy.
Built for demanding inspection: High-quality construction gives you dependable performance and consistent results across all your workshop inspections.

In a nutshell

The right choise for

With the Mitutoyo 21AAA259B extension rod, you easily reach recessed surfaces and deep bores during precision inspection work. When the standard contact point of your dial indicator is too short or the gauge housing risks colliding with surrounding machine parts, this 25 mm rod bridges the gap effortlessly. The precision M2.5 x 0.45 male and female threading ensures a rigid, stable fit without sacrificing measurement accuracy. You can also connect multiple compatible extension rods together for maximum versatility in the workshop.

Product information FAQ

€13.24

tax incl.

Key features according to our expert

Length: 25 mm

All Features

Length: 25 mm

Brand MITUTOYO
41947065
EAN 4946368821078
Supplier number MITUTOYO 21AAA259B

Frequently asked questions about this product

Answered by specialists

What is this Mitutoyo extension rod used for?: It extends the reach or measuring depth of compatible dial indicators and contact points.
What is the length of this extension rod?: This extension rod has a length of 25 mm.
What thread size does the Mitutoyo 21AAA259B use?: The extension rod features an M2.5 x 0.45 male thread and an M2.5 x 0.45 female thread.
Can you connect multiple extension rods together?: Yes, the male and female thread design allows you to screw compatible Mitutoyo rods together.