30-40mm Three-Point Internal Micrometer Self-Centering, Supplied in Case - Metav IndustryLine
Product information "30-40mm Three-Point Internal Micrometer Self-Centering, Supplied in Case - Metav IndustryLine"
Take advantage of the combination of compact, workshop‑grade precision and robust design for repeatable blind‑hole measurement; the self‑centring three‑point contact and hardened measuring faces deliver reliable results across production and maintenance tasks. Order the instrument directly via Metav Werkzeuge or consult our advisors for application guidance.
Three‑point internal micrometer MS908.657 (Metav IndustryLine) — Self‑centring, 30–40 mm
The Three‑point internal micrometer MS908.657 is a mechanically driven measuring instrument intended for precise internal diameter checks, especially blind‑hole applications in fine mechanical and light industrial environments.
- Self‑centring three‑point contact system
- Measurement range 30–40 mm
- Hardened measuring faces for durability
Precision designed for blind‑hole measurement
The three‑point geometry provides self‑centring contact inside blind holes, ensuring that the contact points align automatically with the bore axis and thereby reduce eccentricity errors. With an accuracy of ±0.004 mm and a mechanical reading of 0.005 mm, this analogue measuring instrument translates fine thread motion into dependable metrology results without electronic dependence. The three‑point contact method also helps to average minor surface irregularities, which can reduce rework and speed up routine inspection tasks, making it suitable for both small series production and maintenance checks.
Compact format for fine mechanical work
Classified in the Mikro range (measurement span up to 100 mm), the instrument’s 30–40 mm span and overall length of 97 mm offer a favourable balance between reach and stiffness. This makes the device well suited to precision tasks where space is limited, such as watch and instrument repair, small housings and insert fittings. The hardened measuring faces increase wear resistance and preserve measurement consistency over long service intervals, so that calibration intervals remain predictable and downtime is minimised.
Workshop‑ready robustness and simple handling
The analogue design emphasises mechanical reliability: a clear adjustment ring (setting ring 40) allows quick pre‑setting and repeatable contact positioning, while the compact construction withstands everyday workshop handling. Delivered in a protective case for transport, the micrometer is prepared for secure storage and movement between benches or sites. The instrument’s straightforward operation and sturdy build lower the barrier to consistent metrology in production, inspection and maintenance workflows while keeping measurement practice transparent and traceable.
Contact Metav Werkzeuge today for tailored application advice on the Metav IndustryLine Three‑point internal micrometer MS908.657 and ensure the right fit for blind‑hole inspection in your workshop
Technical data
- Article number: MS908.657
- Manufacturer: Metav IndustryLine
- Product type: Three‑point internal micrometer
- Suitable for: Blind‑hole measurement
Core data
- Measurement range: 30–40 mm
- Length: 97 mm
- Accuracy: ±0.004 mm
- Reading (resolution): 0.005 mm
- Adjustment ring: 40
- Mechanical type: Analogue
Special features
- Self‑centring three‑point contact
- Hardened measuring faces
- Delivered in protective case for transport
- Suited to fine mechanical and light industrial use
FAQ
What makes the three‑point contact better for blind holes?
The three‑point geometry centres itself in the bore and averages contact positions; the MS908.657 uses this principle to reduce eccentricity and provide stable internal diameter readings for blind‑hole applications.
What accuracy and resolution can be expected from this instrument?
The instrument offers an accuracy of ±0.004 mm with a mechanical reading of 0.005 mm, giving precise analogue measurement suitable for production checks and workshop inspection.
Is the device suitable for watchmaking and small parts?
Yes. With its compact dimensions and classification in the Mikro range, the micrometer is well adapted to fine mechanical work, small housings and components where a short, stiff measuring span is required.
Are the measuring faces wear‑resistant?
The micrometer is supplied with hardened measuring faces, which increases durability and helps maintain measurement consistency over extended use.
Does the delivery include a protective case?
The instrument is supplied in a protective case for transport and secure storage, making it straightforward to move between benches or sites.
Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com