Mitutoyo Setting Ring Gage

The Mitutoyo Setting Ring Gage is a precision reference standard. It is used to set and calibrate bore gages, dial bore gages, air gages, and other internal and external diameter measuring instruments. Machinists, inspectors, and quality control teams use these setting rings (also called ring gauges or master rings) to set a known diameter before measuring bored holes. This helps keep measurements repeatable and accurate.

Key Features:

• Precision-ground bore built as a reference for setting comparison-type measuring instruments
• Hardened, wear-resistant construction for long service life in shop and inspection environments
• Suited to setting bore gages and verifying other diameter measuring tools
• Made by Mitutoyo, a long-established maker of precision measuring equipment
• Available in several diameters so you can match the ring to the bore size you inspect

Store the ring clean and lightly oiled, and handle it with care. This protects the bore surface and preserves its calibration accuracy. It is a dependable addition to any metrology lab, tool crib, or machine shop.