JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6h - M58 x 1 FMH FLH FHH S&E A&NF M&D controlled cutting on sloped surfaces

controlled cutting on sloped surfaces and complex profiles

The tool is crafted for durability and consistent results in mold and die applications

9 mm shank diameter) are tuned for compatibility with standard machine tools and consistent bore sizing across production runs

40 mm diameter and a straight HSS shank

The four-flute geometry promotes efficient chip evacuation

JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6h - M58 x 1 FMH FLH FHH S&E A&NF M&D controlled cutting on sloped surfacesThe JBO Thread Ring Gauge (GO) Metric Fine Right Hand 6h M58 x 1 is a precision tool used to validate external thread diameters. Its ideal for manufacturers, engineers, inspectors, and workshop technicians who need quick, reliable go no go checks to confirm parts meet the M58 x 1 metric fine standard. Built from hardened steel for outstanding durability, this GO gauge resists wear in busy environments. Its simple, user friendly design makes it easy to