The GAGE BO9-2 Go No-Go Gauge is a precision plug gauge used to quickly verify bore sizes in quality control and machining. It defines a go size of 1.3150 and a no-go size of 1.3270, so a bore that accepts the go gauge but does not accept the no-go gauge confirms the hole falls within the intended tolerance. As a compact, hand-held inspection tool in GAGE’s tooling lineup, the BO9-2 enables fast pass/fail checks during drilling, reaming, or assembly processes, supporting reliable acceptance decisions in production environments.
