Carbide-tipped for extended tool life: The carbide tip (K10) provides superior wear resistance
ensuring parts stay within tolerance across multiple cycles
yielding cleaner holes and smoother feeds
58 mm diameter and a straight shank
The straight shank enables easy clamping in common holders
JBO Thread Ring Gauge (GO) - Metric Coarse - Right Hand - 6g - M48 x 5 Hydraulic Expansion Chucks Carbide-tipped for extended tool life:The JBO Thread Ring Gauge (GO) Metric Coarse, Right Hand, 6g, M48 x 5 is a precision inspection tool designed for engineers, machinists, quality teams, and workshop technicians. This GO gauge ensures external thread engagement meets exact specifications, enabling quick, reliable go no go checks on metric coarse threads. Built from hardened steel for exceptional wear resistance, it stands up to daily use in inspection routines, calibration checks, and