JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M40 x 2 Hex Key Drill Chuck micro-detailing

micro-detailing

delivering long-lasting performance and reliable toolholding over time

Tight diameter tolerance: Cutting diameter held to +0/-0

and a tapered neck provides predictable results on inclined features while maintaining smooth finishes and steady feeds

intermediate precision HSS reamer (M2) sized at 39

JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M40 x 2 Hex Key Drill Chuck micro-detailingThe JBO Thread Ring Gauge (NoGo) Metric Fine Left Hand 6g M40 x 2 is a precision inspection tool designed to confirm the external threads on fasteners, fittings, and mating parts meet the Metric Fine standard. Its ideal for engineers, machinists, quality teams, and assembly technicians who need a reliable go no go check to verify thread fit and adherence to specifications. Crafted from hardened steel for lasting accuracy, this NoGo gauge resists wear