Sunnen GR-2245/2241 gages built roughneck tough for large-part machining. Patented, wear-proof ball cranks ensure long-term repeatability<br />
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Sunnen GR-2245/2241 bore gages combine rugged design with precise, reliable measurement to 0.0001" for heavy-duty large-part machining. Standard models are capable of checking bore diameters from 2" (50.8 mm) to 12" (300 mm) and bore lengths up to 24" (600 mm) with appropriate attachments, while special order models can measure bores up to 65" ...This story is related to the following:Bore Gages | Dial Gages | Gages