JBO Thread Plug Gauge (GO) - UNC - Right Hand - 2B - 2 1/2 x 4 FHH enabling clean internal corners and

enabling clean internal corners and smooth walls with fewer passes

The straight shank and 9 mm shank diameter pair with common collets and holders

enabling fast pass/fail decisions in QC and reducing rework

6 mm thickness provides efficient material removal in thin-stock work

JBO Thread Plug Gauge (GO) - UNC - Right Hand - 2B - 2 1/2 x 4 FHH enabling clean internal corners andThe JBO Thread Plug Gauge (GO) for UNC threads is a precision inspection tool designed to verify internal thread holes quickly and reliably. Its go no go design helps technicians confirm whether a threaded hole conforms to Unified thread standards, ensuring proper fitment for the fasteners used in your assemblies. Designed for a wide audienceengineers, buyers, shop floor technicians, and maintenance teams across manufacturing, automotive, and