Spi MS160712001 Micrometer Calibration Standard 1 Inch

Product Description

The SPI MS160712001 is a flat-end micrometer calibration standard used to verify and zero outside micrometers in the field or on the shop floor. Machined to a maximum length of 1 inch with an accuracy of 0.000080 inch, this gauge rod gives technicians and machinists a reliable reference point for confirming instrument accuracy before taking critical measurements. It includes a heat-insulating handle to prevent thermal expansion from body heat, which can otherwise introduce measurement error when handling the standard directly. This type of calibration standard is a basic requirement in any quality-controlled metrology workflow.

This calibration standard is suited for use in machine shops, tool rooms, manufacturing facilities, and maintenance environments where micrometer accuracy must be confirmed regularly. The 1-inch length covers a common measurement range and is appropriate for verifying micrometers used in general-purpose dimensional inspection. The flat end geometry is compatible with standard outside micrometer anvil and spindle faces. Machinists, quality technicians, and toolroom personnel are the primary users of this type of standard.

Key Features

• Flat end geometry for compatibility with standard outside micrometer spindle and anvil faces
• Accuracy of 0.000080 inch for reliable instrument verification
• 1-inch reference length covers a common micrometer range
• Calibrated at the factory for use as a direct measurement reference
• Includes heat-insulating handle to minimize thermal growth during handling

Compatibility

Designed for use with outside micrometers requiring a 1-inch flat-end calibration reference standard.

Installation Notes

This is a precision calibration standard, not an installed component. Always hold the standard by the heat-insulating handle to prevent body heat from affecting the reference length. Store in a protective case away from moisture, chips, and abrasive surfaces when not in use. Calibration standards should be handled in accordance with shop metrology procedures and re-certified periodically per your quality management requirements.