6-10mm Digital Three-Point Internal Gauge Two Heads, IP65 With Setting Ring And Extension - Metav IndustryLine

Benefit from precise three‑point internal measurement, robust IP65 protection and fine 0.004 mm accuracy for reproducible results; order the M312.283.PN directly via Metav Werkzeuge or ask our consultants if needed

M312.283.PN — Digital three‑point internal micrometre, 6–10 mm, IP65 (Metav IndustryLine)

The M312.283.PN is a compact digital three‑point internal micrometre intended for accurate blind‑hole and small‑bore inspections in workshop and fine‑mechanical environments

• Digital display with mm/inch and HOLD
• Three‑point internal measurement for centring
• IP65 protection for harsh workshop conditions
• Includes setting ring and 100 mm extension

Engineered for reliable, repeatable internal measurement

The instrument is built around a three‑point measuring head that centres automatically in small bores, reducing operator influence and improving repeatability. With a measuring range of 6–10 mm and a stated accuracy of 0.004 mm, the device bridges the gap between handheld gauges and bench metrology for fine internal inspections. The compact measuring depth of 55 mm supports access into shallow blind holes while the lightweight construction maintains manoeuvrability during repetitive tasks. These characteristics make the tool particularly suitable where consistent centring and minimal run‑out are essential.

Durable design and practical delivery for everyday use

Designed for workshop realities, the micrometre carries an IP65 rating that guards sensitive electronics against dust and splashes, enabling use close to production without compromising the instrument. The unit weighs 1.8 kg and is supplied complete with a setting ring and a 100 mm extension to handle slightly recessed features; delivery in a protective transport box ensures safe storage and movement between workstations. Robust components and sealed electronics provide confidence in rougher environments, supporting uninterrupted inspection routines and lower downtime.

Clear digital readout and data output for process integration

A high‑resolution display with a reading step of 0.001 mm delivers fine numerical feedback; functions include ON/PRESET, mm/inch switching and HOLD for stable readings. The built‑in RB 6 data output allows connection to external recording systems for documentation or SPC workflows, simplifying traceability in quality control. Because the head configuration is optimised for blind‑hole bores, the device streamlines internal diameter checks without the need for special fixturing, while the straightforward controls reduce training time and improve throughput.

Contact Metav Werkzeuge for tailored advice on integrating the IP65 digital three‑point internal micrometre into measurement routines; phone +49 2822 7131930 or email info@metav-werkzeuge.com

Technical data

• Article number: M312.283.PN
• GTIN: 4054469179247
• Category: Internal micrometre (three‑point)

Data

• Measuring range: 6–10 mm (6–8 + 8–10)
• Resolution: 0.001 mm
• Accuracy: 0.004 mm
• Measuring depth: 55 mm
• Weight: 1.8 kg
• Extension: 100 mm
• Customs tariff number: 90173000

Special features

• Digital display with ON/PRESET, mm/inch and HOLD
• Data output: RB 6
• IP 65 protection
• Two measuring heads for three‑point internal measurement
• Suitable for blind‑hole bores
• Includes setting ring and extension
• Delivered in transport box

FAQ

What measuring range does the instrument cover?
The M312.283.PN covers a measuring range of 6–10 mm, split into 6–8 mm and 8–10 mm segments for precise small‑bore checks.

How accurate is the digital readout?
The digital display on the M312.283.PN provides a resolution of 0.001 mm with an overall accuracy of 0.004 mm for repeatable internal measurements.

Is the micrometre suitable for blind‑hole bores?
Yes, the design of the M312.283.PN is specifically suited to measure blind‑hole bores and includes extensions and a setting ring to facilitate recessed checks.

Can measurement data be exported to a PC or SPC system?
The device features an RB 6 data output, enabling connection to external recording systems for documentation and process control with the M312.283.PN.

What accessories are included with delivery?
Delivery of the M312.283.PN includes a setting ring, a 100 mm extension and protective transport packaging for safe handling and storage.

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