JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6h - M39 x 2 G that refers to blanks prepared

that refers to blanks prepared to manufacture your reamer

With its precise tolerance and established DIN-like performance

With a 14 mm diameter and a 2 mm corner radius

Intermediate precision carbide (K10) stub reamer: Delivers repeatable hole sizes with longer tool life for finish-critical holes

enabling quick pass/fail decisions and reducing inspection time and rework

JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6h - M39 x 2 G that refers to blanks preparedThe JBO Thread Ring Gauge (GO) Metric Fine Right Hand 6h M39 x 2 is a precision tool designed to verify external thread diameters against the metric fine standard. Its ideal for engineers, machinists, quality control professionals, and workshop technicians who need fast, reliable checks that components meet exact specifications. Crafted from hardened steel, this GO ring gauge delivers exceptional durability and wear resistance in demanding