(Sunnen: St. Louis, MO) -- Sunnen GR-2245/2241 bore gauges combine rugged design with precise, reliable measurement to 0.0001 in. for heavy-duty large-part machining. Standard models are capable of checking bore diameters from 2 in. (50.8 mm) to 12 in. (300 mm) and bore lengths up to 24 in. (600 mm) with appropriate attachments, while special order models can measure bores up to 65 in. (1650 mm) long.

GR-2245/2241 gauges are ideal for energy industry components, such as flow meter tubes, liner hangers, drill pipe, mud pump liners, and sucker rod pump barrels. Available with analog dial readout or electronic indicators, the gauges feature long-wearing, replaceable carbide gaging points to withstand extreme wear conditions with rough workpieces or abrasive materials. The gauges feature patented wear-proof ball cranks for long-term repeatability and retractable or nonretractable gaging points. Models with retractable gauging points prevent scratching of the bore during removal. The gauges are designed with a dust and water protection level of IP42 or IP53, and a specially designed shock shield protects the dial from hand heat and jarring to ensure reliable readings.

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