Calibration Certificate For Internal Micrometer With Double Anvil - Metav IndustryLine

Take advantage of precise internal measurements, robust mechanical design and included adjustment accessories for reliable inspection results; order the instrument directly via Metav Werkzeuge or consult our specialists for application support. M311.053 Internal micrometer — double anvils, 0.01 mm reading (Metav IndustryLine) A M311.053 internal micrometer designed for accurate measurement of internal diameters in precision workshops and inspection environments Internal measuring range 5–55 mm Mechanical reading with 0.01 mm resolution Double measuring anvils for secure contact Includes setting ring and protective case Precision where measurement counts The M311.053 delivers industrial-grade precision for internal diameter checks. With a mechanical reading of 0.01 mm and a verified accuracy of ±0.006 mm, the instrument supports repeatable results for batch inspection and small-series production. The analogue design ensures direct, latency-free readings and a tactile measuring feel that many technicians prefer for fine adjustments. These specifications translate into measurable time savings during setup and confidence in pass/fail decisions on the shop floor. Robust contact geometry and user-oriented features The micrometer’s double measuring anvils provide a stable contact geometry inside bores and recesses, reducing rocking and improving concentricity during measurement. A dedicated setting ring is included for quick zeroing and routine checks, while the measuring drum matt chrome-plated finish resists glare and simplifies reading under workshop lighting. The analogue mechanism is compact and serviceable, enabling straightforward maintenance and long service life under normal industrial use. Compact range for fine mechanical work Classified in the micro class (compact measuring range up to 100 mm), this instrument covers the measuring range 5–55 mm and is particularly suited to small bores, precision components and detailed inspection tasks in toolmaking, instrument making and precision engineering. The supplied protective case (plastic or wooden) facilitates safe transport and storage between measurement stations, preserving the calibrated condition of the instrument and accessories. Straightforward operation and traceable basis Operation is deliberately simple: the mechanical spindle and vernier-style drum give immediate feedback without software or batteries, and the supplied setting ring supports quick verification routines. The device is produced to the stated factory standard (Werksnorm), providing a clear traceable basis for routine quality checks. For shops that require a no-frills, dependable measuring tool for internal diameters, this mechanical solution reduces complexity while maintaining a high level of metrological performance. For precise internal measurements with a reliable mechanical instrument, request specification advice or place an order through Metav Werkzeuge — Metav IndustryLine specialists are available by phone or e‑mail to assist with selection and delivery arrangements. Technical data Article number: M311.053 GTIN: 4054469119076 Manufacturer: Metav IndustryLine Category: Micrometers (internal measuring) Standard: Werksnorm Facts Measuring range: 5–55 mm Reading / Resolution: 0.01 mm Accuracy: ±0.006 mm Setting measure: 30 mm Tariff code: 90173000 Analogue / mechanical instrument Special features Double measuring anvils Includes setting ring Measuring drum matt chrome-plated Delivered in protective case (plastic or wooden) Mechanical operation, no batteries required FAQ What internal diameters can this instrument measure? The instrument measures internal diameters across the 5–55 mm range and is intended for precision internal checks within that span. Is a calibration certificate supplied with the micrometer? The device is manufactured to the stated factory standard (Werksnorm); a separate factory calibration procedure is applied as part of production. How does the double-anvil design help measurements? Double measuring anvils increase contact stability inside bores, reducing tilt and improving repeatability when taking multiple readings. What is included in the delivery package? Delivery comprises the micrometer, the setting ring for zeroing, and a protective case for safe transport and storage. Is the instrument battery-powered or digital? This is an analogue, mechanical micrometer with a drum reading; no batteries or electronic data output are required. Metav IndustryLine: Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com