JBO Thread Ring Gauge (GO) - Metric Coarse - Left Hand - 6g - M12 x 1.75 FMH 13–15 Micron Runout: Delivers tight

13–15 Micron Runout: Delivers tight

you receive a size-ground reamer tailored to your specification

high-accuracy milling and drilling applications

This reamer delivers precise bore sizing with a smooth finish for metalworking projects that demand tight tolerances

and extending tool life

JBO Thread Ring Gauge (GO) - Metric Coarse - Left Hand - 6g - M12 x 1.75 FMH 13–15 Micron Runout: Delivers tightThe JBO Thread Ring Gauge GO for Metric Coarse (Left Hand) is a precision inspection tool designed to verify external threads quickly and accurately. Its ideal for engineers, machinists, inspectors, and quality teams who need to confirm that M12 x 1. 75 metric coarse threads meet exact specifications so assemblies fit reliably. Crafted from hardened steel for durability and wear resistance, this GO ring gauge preserves its precise dimensions through