Starrett 50923 Telescoping Gage 1/2 to 3/4 Inch

Product Description

The STARRETT 50923 is a telescoping gage used to measure internal bore diameters in the 1/2 to 3/4 inch range. The tool works by inserting the spring-loaded plungers into a bore, locking them at the contact diameter, then withdrawing and measuring across the plunger tips with an outside micrometer. Overall length is 3-11/64 inches, and the handle is 2-3/8 inches long with a chrome-plated finish that resists corrosion and improves durability. Machinists, mechanics, and precision maintenance technicians use this tool to check cylinder bores, bushings, and housing bores where direct caliper access is limited.

This telescoping gage is suited for precision measurement work in machine shops, engine rebuilding, and general mechanical maintenance environments. It is appropriate for both production and repair settings where accurate internal bore measurement is required within its 1/2 to 3/4 inch measurement range. The chrome-plated handle provides a secure grip and a professional feel during use.

Key Features

• Measurement range of 1/2 to 3/4 inch for internal bore diameters
• 3-11/64 inch overall length for reach into moderate-depth bores
• 2-3/8 inch chrome-plated handle resists corrosion and wear
• Spring-loaded plungers lock at contact diameter for accurate transfer measurement
• Compact and lightweight at 0.063 pounds for easy single-hand operation

Compatibility

Designed as a general-purpose telescoping gage for use with any outside micrometer capable of reading within the 1/2 to 3/4 inch range.

Installation Notes

Telescoping gages are handheld precision instruments and require no installation. Use with a calibrated outside micrometer to obtain a final diameter reading. Ensure the bore surface is clean and free of debris before measurement to avoid false readings. Handle with care to preserve plunger tip condition and measurement accuracy.