Spi 14-192-9 Telescoping Gage Set 5/16 to 6 in 6 Pc

Product Description

The SPI 14-192-9 is a 6-piece telescoping gage set covering a measurement range of 5/16 inch to 6 inches. Each gage uses a spring-loaded, self-centering plunger that locks at bore diameter, allowing the technician to transfer the measurement to an outside micrometer for a precise reading. The bodies are machined from hardened tool steel for wear resistance, and the working faces carry a titanium nitride (TiN) coating that reduces friction and extends service life. Handle lengths in the set measure 4 inches and 5 inches, giving good reach in both shallow and deeper bores. The complete set ships in a vinyl storage pouch and weighs 1 pound.

This set is used by machinists, tool-and-die workers, maintenance technicians, and metrology personnel who need to measure inside diameters, bores, slots, and grooves that a standard caliper jaw cannot reliably reach. Typical applications include checking cylinder bores, bushing IDs, bearing housings, and valve guides in production, repair, and inspection environments. The six-piece range covers the most common bore sizes encountered in general machining and mechanical maintenance work.

Key Features

• Measurement range: 5/16 inch minimum to 6 inches maximum across 6 gages
• Hardened tool steel construction for durability in shop environments
• Titanium nitride (TiN) coating on working faces reduces wear and friction
• Satin chrome finish on handles and bodies resists corrosion
• Handle lengths of 4 inches and 5 inches for varied bore depth access
• Includes vinyl storage pouch to protect gages and keep the set organized

Compatibility

Designed as a general-purpose telescoping gage set for use with any outside micrometer calibrated in inch measurements; compatible with standard shop measurement workflows wherever inside-diameter transfer gaging is required.

Installation Notes

Telescoping gages are used by machinists and precision measurement technicians and require no installation. Compress the plunger, insert the gage into the bore at a slight angle, allow it to expand against the bore walls, lock the plunger, then withdraw and measure across the contact points with a calibrated outside micrometer. Clean contact faces before use to avoid measurement errors. Store in the provided vinyl pouch to protect the TiN-coated working faces from damage.