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The SPI 13-986-5 is an electronic bore gage designed for precision internal diameter measurement across a 6 to 10 inch measuring range. It delivers 0.00025 inch accuracy and 0.00005 inch (0.001 mm) resolution, making it well suited for high-tolerance inspection work in machine shops, engine rebuild facilities, and manufacturing environments. The gage includes a built-in indicator and supports data output for integration with statistical process control or data logging systems. Auto shut-off and a CR2032 battery are included. Licensed machinists, quality control technicians, and precision measurement professionals are the primary users.
This bore gage is appropriate for applications requiring repeatable internal diameter verification on bores ranging from 6 to 10 inches in depth capacity up to 15 inches. Typical use cases include cylinder bore inspection, large bearing seat measurement, and general precision metrology on production or rebuild floors. The inch/metric and incremental/absolute measurement modes extend its utility across mixed-standard workflows. The unit ships with anvils, a spacer, and a fitted storage case, ready for immediate deployment.
Designed as a general-purpose electronic bore gage for precision internal diameter measurement on bores in the 6 to 10 inch range across machine shop, manufacturing, and engine rebuild applications.
This instrument is intended for use by trained machinists or metrology technicians familiar with bore gage setup and zeroing procedures. Before use, allow the gage and workpiece to reach thermal equilibrium at ambient temperature to avoid measurement error. Set the master ring or reference standard before taking measurements and verify zero between measurement sessions. Store in the supplied fitted case when not in use to protect the contact anvils and indicator from damage.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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