Mitutoyo 395-351-30 Spherical Face Micrometer 25.4mm

Product Description

The MITUTOYO 395-351-30 is an electronic spherical face outside micrometer designed for precise measurement of curved and contoured workpieces. It delivers a maximum measurement range of 25.4mm with a resolution of 0.0001 inch and accuracy rated to 0.0001 inch, making it suitable for high-precision metrology work in tool rooms, manufacturing shops, and quality control environments. The satin chrome finish reduces glare during use. The unit carries an IP65 ingress protection rating, meaning it resists dust and direct water jets, a practical advantage in shop-floor conditions. Licensed metrologists, machinist-level technicians, and QC professionals are the primary users.

This micrometer is suited for applications where a standard flat anvil cannot make reliable contact with a workpiece surface, such as measuring wall thickness on cylinders, tubes, or other curved components. The spherical anvil face ensures a consistent contact point on irregular or convex surfaces. The built-in data output port allows integration with statistical process control software or data loggers, streamlining inspection workflows on production lines or in calibration labs.

Key Features

• Spherical anvil face for accurate contact on curved and contoured surfaces
• Electronic operation with 0.0001 inch resolution and 0.0001 inch accuracy
• IP65 rated for dust-tight and water-jet-resistant protection in shop environments
• Data output port for SPC software and data logger integration
• Ratchet stop thimble for consistent, repeatable measuring force
• TUV certified; includes plastic carrying case and SR44 battery

Compatibility

Designed as an OEM-specification precision measuring instrument for use in tool rooms, quality control labs, and manufacturing environments requiring spherical-anvil outside micrometer capability.

Installation Notes

This instrument requires no installation in the traditional sense but should be handled and stored per standard metrology practices. Before use, verify calibration with a reference standard appropriate to the measurement range. Keep the measuring faces clean and free of debris to preserve accuracy. The SR44 battery powers the electronic display and data output circuit; replace the battery when the low-battery indicator appears to avoid measurement errors.