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low-runout fit in common drill and reaming setups
yielding superior surface finish and precise
delivering clean contours and durable performance
Shank: Straight shank for universal hand reaming compatibility
enabling consistent verification and quick
JBO Thread Plug Gauge - UNC Go-No/Go - Right Hand - 3B - 5/16 x 18 End Mill Holders low-runout fit in common drillThe JBO Thread Plug Gauge is a UNC Go No Go right hand gauge designed to verify threaded holes quickly and reliably. Sized for 5 16 x 18 threads, it helps inspectors, machinists, and quality teams confirm that holes meet Unified thread standards with confidence. Its go no go design streamlines your QA workflow, making it easy to spot non conforming parts and prevent improper assemblies. Go No Go design for quick pass fail checks: Instantly identify
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