Spi Z9304 Spline Micrometer Anvil 1 to 12 Inch

Product Description

The SPI Z9304 is a spline-type micrometer anvil designed as a replacement or spare accessory for outside micrometers with a measuring range of 1 to 12 inches. The anvil is a precision contact point that forms one of the two measuring faces in a micrometer assembly. A worn, damaged, or missing anvil directly affects measurement accuracy, making this a critical component for any calibration or repair workflow. At 0.1 inches in overall length and 0.5 pounds, it is a compact, lightweight part suited for bench-level tooling maintenance performed by machinists, metrology technicians, and tool-room professionals.

This anvil is intended for use in precision measurement environments where micrometer tools require servicing or part replacement. The spline configuration suits specific micrometer body designs that accept spline-fit anvil components. It applies across general manufacturing, tool-and-die, quality control, and inspection settings where outside micrometers in the 1 to 12 inch range are in regular service. Individual packaging makes it suitable for single-unit replacement without surplus stock.

Key Features

• Spline anvil type for secure, stable seating in compatible micrometer bodies
• Compatible with micrometers covering a 1 to 12 inch measurement range
• Overall length of 0.1 inches for precise dimensional fit
• Lightweight at 0.5 pounds for easy bench handling
• Single-unit packaging supports targeted replacement without over-ordering

Compatibility

Designed for use with outside micrometers having a measuring range of 1 to 12 inches that accept a spline-type anvil configuration.

Installation Notes

Anvil replacement is typically performed by a qualified metrology technician or tool-room machinist. Before servicing, ensure the micrometer is removed from active use and the spindle is fully retracted to prevent contact damage. Follow the micrometer manufacturer's service documentation for anvil removal and seating procedures. After installation, verify calibration against a traceable gauge block before returning the instrument to service.