JBO Thread Ring Gauge (GO) - Metric Coarse - Right Hand - 6e - M12 x 1.75 NCDC Drill Chuck 25 mm size and ISO

25 mm size and ISO H5 tolerance guarantee consistent hole diameters to BS 328/4 standards

Designed for a wide range of users—from engineers and machinists to hobbyists—this tool delivers dependable performance across aluminum

DIN 8093/H4 tolerance

73 mm bore with ISO H5 tolerance: ISO H5 tolerance (-0 / +0

Synchro Motion for Precision Tapping: The coordinated axial and rotary movement ensures consistent thread quality

JBO Thread Ring Gauge (GO) - Metric Coarse - Right Hand - 6e - M12 x 1.75 NCDC Drill Chuck 25 mm size and ISOThe JBO Thread Ring Gauge GO (Metric Coarse, Right Hand, 6e, M12 x 1. 75) is a precision inspection tool designed for engineers, machinists, inspectors, and quality teams. Built from hardened steel with carefully controlled dimensions, it provides a fast, reliable way to verify external threads against the M12 x 1. 75 coarse thread standard. This GO gauge helps ensure proper fit and function of metric coarse fasteners and mating components, reducing