15mm Mounting Dial Gauge Ball Tip Spindle 5mm 0.01mm Graduation 0.5mm Pitch - Metav IndustryLine

Take advantage of the combination of compact inset design, micrometre‑grade 0–15 mm measuring range and reliable mechanical read‑off for precise small‑part inspection. Order the micrometer directly via Metav Werkzeuge or ask the consultants for integration advice.

M303.121 Inset Micrometer (0–15 mm) — Analogue, Spherical Faces

The M303.121 is an inset analogue micrometer for fine mechanical measurement tasks, designed to be mounted into fixtures for repeatable short‑range inspection up to 15 mm.

• Analogue reading with 0.01 mm graduation
• Fully hardened spindle for long-term accuracy
• Matt‑chrome drum for glare‑free read-off
• Spherical measuring faces for reliable contact

Precision where space is limited

This inset micrometer is tailored for minimal‑space measuring tasks where precision and compactness matter. Classified in the micro range (maximum measuring range up to 100 mm), the instrument covers 0–15 mm with a reading step of 0.01 mm, enabling clear, fine graduations on the thimble for vernier‑style or barrel read‑off. The short overall form factor keeps leverages and bending moments low, which benefits repeatability when the device is integrated into fixtures or small gauges. Suitable for fine mechanical workshops, instrument making and component inspection, the compact construction preserves stiffness where centimetre‑scale tools would be oversized.

Reliable contact and long‑term repeatability

Mechanical design choices reduce drift and maintain measurement integrity: the fully hardened spindle resists wear, while the matt‑chrome drum reduces reflection for easier reading under workshop lighting. The spindle advances with a 0.5 mm pitch, meaning each full rotation corresponds to 0.5 mm axial travel; combined with the fine graduation this yields consistent, predictable displacement per division. The spherical measuring faces ensure stable point contact on slightly curved surfaces and reduce tilting errors during clamping, so results remain reproducible across repeated checks.

Integration into fixtures and common applications

As an inset micrometer with an analogue mechanism, the unit is designed for straightforward installation into measuring jigs, custom fixtures or test benches where a flush or protected mounting is required. The compact length (61 mm) and robust contact geometry make it useful for watchmaking, precision turning, and small‑scale quality control where fast, repeatable checks are needed. The mechanical read‑off removes dependency on batteries or electronics, offering a low‑maintenance solution for long‑term shop‑floor use while still delivering micrometre‑level resolution and reliable handling.

Contact Metav Werkzeuge to discuss integration options for the M303.121 inset micrometer and arrange supply directly from Emmerich.

Technical Data

• Article number: M303.121
• GTIN: 4054469115702
• Eclass: 21170330

Facts

• Measuring range: 0–15 mm
• Resolution / reading: 0.01 mm
• Spindle diameter: 5 mm
• Spindle pitch: 0.5 mm
• Length: 61 mm
• Customs tariff number: 90173000

Special features

• Analogue micrometer (mechanical)
• Spherical measuring faces
• Spindle fully hardened
• Matt‑chrome plated drum
• Category: Micrometers (inset)

FAQ

What is the measuring range and resolution of this micrometer?
The M303.121 inset micrometer measures from 0 to 15 mm with a reading resolution of 0.01 mm, suitable for fine‑scale inspection tasks.

Are the measuring faces suitable for curved surfaces?
Yes. The spherical measuring faces on the M303.121 provide stable point contact on slightly curved or irregular surfaces, improving repeatability for such geometries.

How is the spindle protected against wear?
The spindle is delivered fully hardened and is paired with a matt‑chrome drum to reduce surface wear and reflection, preserving long‑term accuracy.

Can the micrometer be mounted into fixtures?
The inset design is specifically intended for integration into gauges and fixtures; the compact body and mounting format simplify installation for repetitive testing.

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com