JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 6H - M12 x 1 Boring Bar Blank and pre-hardened workpieces

and pre-hardened workpieces

reducing clogging and delivering a smooth bore finish

and durable HSS-E material helps you streamline finishing operations

it uses a left-hand spiral flute and right-hand cutting to deliver stable chip flow and accurate bore finishes

Its carbide composition and defined flute geometry provide durable performance

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 6H - M12 x 1 Boring Bar Blank and pre-hardened workpiecesThe JBO Thread Plug Gauge is a precision Go No Go inspection tool designed for metric fine threads. Specifically engineered for M12 x 1 right hand threads with 6H tolerance, it helps ensure threaded holes meet exact specifications during manufacturing, assembly, and quality control. Crafted from hardened steel and finished with a knurled, non slip body, this gauge delivers durable, long lasting performance in busy workshops while providing consistent