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The flute geometry combines a left-hand spiral with right-hand cutting to optimize chip control and deliver consistent finishes
Ultra-precise concentricity and low runout: G2
making it a reliable choice for both new builds and refurbishment projects
It securely holds parallel milling cutters and maintains rigid alignment during high-speed milling
it provides a quick GO check to confirm parts meet exact metric standards and thread pitch
JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 4h - M19 x 0.75 FMH The flute geometry combines aThe JBO Thread Ring Gauge (GO) is a precision tool designed to quickly verify external threads. Its ideal for machinists, quality control professionals, engineers, and workshop teams who need reliable, fast checks to ensure parts meet exact standards. Designed for right hand, metric fine threads, this GO gauge targets M19 x 0. 75 with a 4h tolerance. Crafted from hardened steel, it delivers durable, long lasting performance in busy work environments
