Starrett 52616 Telescoping Gage Set 5/16 to 2-1/8 in 4 Pc

Product Description

The STARRETT 52616 is a 4-piece telescoping gage set used to measure internal bore diameters, cylinder walls, and hole sizes in mechanical and trade applications. The set covers a measurement range from 5/16 inches to 2-1/8 inches, making it suitable for a wide spread of bore and hole inspection tasks. Each gage features a 2-3/8-inch handle length, providing adequate grip and control during transfer measurements. The set ships with a carrying case for organized storage and protection of the gages between uses. Machinists, HVAC technicians, and plumbers use telescoping gages when measuring internal diameters before selecting replacement components such as valves, fittings, or pump housings.

This telescoping gage set is appropriate for use in residential and commercial maintenance, repair, and installation work where internal bore measurement is required. Typical applications include checking cylinder bores, valve seats, pipe fittings, and housing bores prior to part selection or sizing. The 4-piece set provides coverage across the 5/16-inch to 2-1/8-inch range, allowing a single kit to address multiple measurement tasks on a job site or in a shop environment.

Key Features

• Measurement range of 5/16 inches to 2-1/8 inches covers common bore and hole sizes
• 4-piece set provides range coverage in a single kit
• 2-3/8-inch handle length on each gage for controlled transfer measurement
• Includes a carrying case for storage and transport
• Suitable for bore, cylinder, and internal diameter inspection tasks

Compatibility

Designed as a general-purpose internal measurement tool compatible with standard bore and hole inspection workflows across HVAC, plumbing, and mechanical service applications.

Installation Notes

Telescoping gages require use with a calibrated outside micrometer to obtain a final measurement reading — the gage itself is a transfer instrument and does not display a direct readout. Lock the telescoping plunger after contact is made inside the bore, then remove and measure across the locked gage with a micrometer. Ensure the gage is clean and free of debris before use to avoid false readings.