Spi 31-473-2 Od Micrometer Attachment Insert Set 8 Piece

Product Description

The SPI 31-473-2 is an outside diameter attachment and insert set designed for use with micrometers. The kit includes four OD insert pairs for a total of eight pieces, along with instructions. The chrome finish provides corrosion resistance and durability in shop environments. This accessory expands the measurement capability of a standard micrometer, allowing technicians and machinists to measure outside diameters on components that require specialized contact points. It weighs 0.2 pounds and is packaged as a single unit.

This insert set is suited for precision measurement tasks in manufacturing, machining, and tool-and-die environments. Machinists, quality control technicians, and maintenance professionals use OD micrometer attachments when standard anvil-and-spindle contact is not adequate for the geometry of the part being measured. The set is sold as one package containing all eight pieces plus instructions, making it a complete accessory solution for compatible micrometers.

Key Features

• Includes four OD insert pairs for a total of 8 contact-point pieces
• Chrome finish for corrosion resistance in industrial shop environments
• Designed as an accessory for use with standard micrometers
• Instructions included for proper installation and use
• Lightweight at 0.2 pounds for easy handling and storage

Compatibility

Designed for use with micrometers as an outside diameter attachment and insert accessory. Consult tool documentation to confirm fitment with your specific micrometer model before ordering.

Installation Notes

Machinists and metrology technicians typically install micrometer attachments. Before attaching or swapping inserts, ensure the micrometer is clean and free of debris to avoid measurement error. Follow the included instructions for correct seating of each insert pair. Avoid over-tightening contact points, as this can damage the micrometer spindle threads or affect calibration.