Mitutoyo 147-351 Mechanical Hub Micrometer 0-1 in

Product Description

The MITUTOYO 147-351 is a mechanical hub micrometer designed for precise outside measurement in the 0 to 1 inch range. It delivers a graduation of 0.001 inches and an accuracy of 0.0001 inches, making it well-suited for tight-tolerance measurement tasks in trade and manufacturing environments. Both the anvil and spindle are carbide-tipped, providing long-term wear resistance under repeated use. The spindle diameter is 6.35mm. This instrument is used by machinists, field technicians, and quality-control personnel who require reliable dimensional verification without electronic components.

The 147-351 is used in shops and field settings where mechanical measurement is preferred over digital readouts. Its hub-style design allows access to recessed or flanged surfaces that standard outside micrometers cannot reach. It is appropriate for production inspection, maintenance measurement, and precision fitting tasks across metalworking, HVAC equipment servicing, and mechanical trades. The 0 to 1 inch range covers a wide array of common shaft, hub, and fastener dimensions encountered in daily trade work.

Key Features

• Measurement range of 0 to 1 inch covers common shaft and hub dimensions
• 0.0001 inch accuracy supports tight-tolerance inspection work
• 0.001 inch graduation for direct reading without interpolation
• Carbide anvil and spindle for extended wear life under repeated use
• Mechanical operation requires no batteries or electronic components
• Hub-style design accesses recessed and flanged measurement surfaces

Compatibility

Designed as an OEM-style precision measuring instrument suitable for general mechanical measurement tasks in the 0 to 1 inch range across trade and industrial applications.

Installation Notes

No installation is required for this instrument. Before use, verify the zero setting with the included standard or a known reference gauge. Clean measurement faces with a lint-free cloth before each use to prevent debris from affecting accuracy. Store in the provided case away from heat sources and corrosive environments to maintain calibration.