JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 6G - M21 x 1 Tapping Chucks 91 mm bore diameter

91 mm bore diameter

and other precision machining tasks

while the left-hand flute aids chip evacuation for smoother cutting and reduced workpiece rework

and workshop buyers

Right-hand orientation with 6H tolerance: Specifically configured for right-hand threads and standard 6H tolerance

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 6G - M21 x 1 Tapping Chucks 91 mm bore diameterThe JBO Thread Plug Gauge is a metric fine Go No Go gauge designed to verify internal threads with precision. Its built for machinists, inspectors, and assembly teams working with M21 x 1 right hand threads (6G) to quickly validate hole acceptance, even in high volume productions. The hardened steel construction delivers durable, long lasting performance in tough shop environments. Go No Go precision for metric fine threads: Quickly determine if a