JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 4h - M19 x 1 Boring Bar Blank accurately finished holes with minimal

accurately finished holes with minimal deburring

The tool’s robust carbide core maintains rigidity and precision even at high speeds

Efficient Chip Evacuation for Clean Work: The 4-flute design promotes excellent chip clearance

and better surface finish across cycles

accurate cuts in tight cavities and complex geometries

JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 4h - M19 x 1 Boring Bar Blank accurately finished holes with minimalThe JBO Thread Ring Gauge (NoGo) is a precision tool for inspecting external threads. Designed for metric fine threads (M19 x 1), it helps engineers, machinists, and quality teams quickly verify that parts stay within the required size and tolerance. Crafted from hardened steel for durability, this right hand, 4h NoGo gauge delivers long lasting performance in demanding workshop environments. Its straightforward design makes it easy to identify non