JBO Thread Ring Gauge (NoGo) - BSW - Right Hand - Medium Class - 1 1/4 x 7 Hex Key Drill Chuck The spiral flute minimizes chip

The spiral flute minimizes chip buildup for consistent cuts

this GO gauge helps confirm that a hole will accept the standard thread plug

Precise metric fine threading (M52 x 2

The carbide construction offers durable performance under demanding cutting conditions

and durable service life

JBO Thread Ring Gauge (NoGo) - BSW - Right Hand - Medium Class - 1 1/4 x 7 Hex Key Drill Chuck The spiral flute minimizes chipThe JBO Thread Ring Gauge (NoGo) for BSW is a precision inspection tool designed to verify external thread diameters on fasteners and machined components. Sized for 1 1 4 x 7 and configured as Right Hand with a Medium Class tolerance, it is ideal for manufacturers, maintenance teams, and quality inspectors who need quick, reliable thread validation. Made from hardened steel for durability, this ring gauge withstands frequent use in workshop