JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6h - M30 x 1 FHH while the gash tooth geometry

while the gash tooth geometry and W coating minimize wear and chatter

Left-hand spiral flute with through coolant: Enhances chip evacuation and cooling for smoother finishes and reduced heat during aggressive cutting

and helps you maintain consistent thread quality from part to part

Radius End for Smooth Contours: The radius tip enables clean profiling and contouring with smoother corners and reduced edge chatter

Using this reamer delivers repeatable

JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6h - M30 x 1 FHH while the gash tooth geometryThe JBO Thread Ring Gauge (GO) Metric Fine Right Hand 6h M30 x 1 is a precision Go gauge designed to verify external thread diameters on fasteners, fittings, and machined components. Its ideal for quality control teams, engineers, and workshop technicians who need fast, reliable pass fail checks to confirm components conform to the M30 x 1 metric fine thread specification. Crafted from hardened steel for lasting durability in busy environments, it