JBO Thread Ring Gauge (GO) - Metric Fine - Left Hand - 6g - M56 x 1.5 FMH FLH FHH S&E A&NF M&D 0 mm corner radius supports

0 mm corner radius supports robust edge definition without sacrificing precision

and produces uniform radii across repeated use

ideal for engineers and machinists who demand repeatable

maintain tight tolerances through stable

repeatable seating: Ensures stable alignment in your toolholder

JBO Thread Ring Gauge (GO) - Metric Fine - Left Hand - 6g - M56 x 1.5 FMH FLH FHH S&E A&NF M&D 0 mm corner radius supportsThe JBO Thread Ring Gauge (GO) Metric Fine, Left Hand, 6g, M56 x 1. 5 is a precision tool designed to quickly verify external thread diameters for metric fine threads. Tailored for engineers, machinists, quality teams, and workshop professionals, it helps confirm that threaded components conform to exact specifications with reliable GO checks. Precise GO verification for metric fine threads: Delivers accurate go no go results for M56 x 1. 5 left hand