MITUTOYO 368-991 inner screw gauge set with 3-point measurement 12-20mm 2-piece

Name: MITUTOYO 368-991 inner screw gauge set with 3-point measurement 12-20mm 2-piece
Brand: MITUTOYO
SKU: 41978684
Price: 856.4 EUR
Availability: PreOrder

Supplier number: MITUTOYO 368-991 | EAN 4946368518039

856.40 tax incl.

€707.77 excl. VAT (incl. all environmental contributions)

On order: delivered from 08/10/2026

set

Delivery by DHL

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Accurate bore measurements with Mitutoyo 368-991

Practical benefits

Self-centering three-point design: The three contact points align automatically inside the bore, giving you stable and reliable diameter readings.
Constant measuring force: An integrated ratchet stop applies uniform measuring pressure every time to ensure dependable repeatability.
Hardened alloy contact points: Durable alloy steel measuring faces resist wear so you maintain high precision through frequent inspections.

In a nutshell

The right choise for

The Mitutoyo 368-991 internal micrometer set gives you reliable precision when checking cylindrical bores. Featuring three contact points spaced at 120 degrees, the self-centring design aligns directly inside the workpiece to prevent tilting and alignment errors. The built-in ratchet stop delivers consistent measuring pressure every time, ensuring dependable repeatability with a 0.005 mm graduation scale. Hardened alloy steel measuring faces provide durable wear resistance during demanding inspection tasks in cnc machining, toolmaking, and quality control. Supplied with two micrometers covering the 12 to 20 mm range, a 16 mm setting ring, an extension rod, and a fitted case, this set delivers a complete internal measuring solution.

Product information FAQ

€856.40

tax incl.

Key features according to our expert

Type of micrometer set: Indoor micrometer set
Min. measuring value: 12 mm
Max. measuring value: 20 mm
Scale division: 0,005 mm mm
Quantity per set: 2

Product description:

This is an economy version of a three-point internal micrometer, that offers you the following benefits:
- Hardened tool steel anvils and tapers allow a more economically priced and affordable tool.
- Individual types without setting rings or extensions.
- Sets with setting rings and extensions.

All Features

Type of micrometer set: Indoor micrometer set
Min. measuring value: 12 mm
Max. measuring value: 20 mm
Scale division: 0,005 mm mm
Quantity per set: 2

Brand MITUTOYO
41978684
EAN 4946368518039
Supplier number MITUTOYO 368-991

Frequently asked questions about this product

Answered by specialists

What measurement range does this internal micrometer set cover?: The set covers a total range of 12 to 20 mm and includes two separate micrometers: 12-16 mm and 16-20 mm.
What is the graduation of these bore micrometers?: The graduation scale of these analogue internal micrometers is 0.005 mm.
How does the 3-point contact design improve accuracy?: The contact points spaced at 120 degrees automatically self-centre inside the bore for precise and repeatable measurements.
What accessories are included in this set?: The set includes 2 internal micrometers, a 16 mm setting ring, an extension rod, and a storage case.