The left-hand spiral flute combined with right-hand cutting provides stable cutting action and efficient chip evacuation for clean
Left-hand thread compatibility with clear sizing: Engineered for left-hand metric fine threads (M60 x 2
accurate cuts on tight radii while maintaining a smooth finish
It features a 12 mm bore and a 63 mm gauge length
It helps you quickly identify non-conforming parts
JBO Thread Ring Gauge (GO) - Metric Fine - Left Hand - 6g - M85 x 2 NCDC Drill Chuck The left-hand spiral flute combinedThe JBO Thread Ring Gauge (GO) Metric Fine, Left Hand, 6g, M85 x 2 is a precision inspection tool used to verify external thread diameters. Its designed for engineers, machinists, quality control professionals, and workshop teams who need fast, reliable conformance checks for metric fine threads. Crafted from hardened steel for exceptional wear resistance, this GO gauge maintains accuracy in demanding environments. Its left hand configuration ensures