JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6g - M39 x 1 M&D Efficient Chip Evacuation and Low

Efficient Chip Evacuation and Low Cutting Forces: Sharp edges and flute geometry promote fast chip clearance

Durable M2 HSS with DIN 206-B straight shank: Built for wear resistance and long life

built in HSS for intermediate-precision hole finishing

Flutes: 4-flute design for stable rigidity and efficient chip evacuation

accurate alignment in standard toolholders and CNC setups

JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6g - M39 x 1 M&D Efficient Chip Evacuation and LowThe JBO Thread Ring Gauge (GO) Metric Fine, Right Hand, M39 x 1 is a precision inspection tool designed to verify external thread diameters on fasteners, fittings, and machined components. Its ideal for engineers, inspectors, machinists, and quality teams who need fast, reliable checks to confirm threads conform to exact standards. Specifically tuned for metric fine threads, including M39 x 1 right hand configurations, this GO gauge provides a quick