JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6g - M140 x 4 Hydraulic Expansion Chucks or carving precise grooves

or carving precise grooves

Flute design: Single flute promotes efficient chip evacuation and reduces clogging

despatch can be quicker

supporting consistent results across multiple passes

Left-hand spiral flute with right-hand cutting: Optimized geometry promotes smooth cutting and efficient chip evacuation for cleaner

JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6g - M140 x 4 Hydraulic Expansion Chucks or carving precise groovesThe JBO Thread Ring Gauge (GO) is a precision tool for quickly verifying external thread diameters against metric fine standards. Its ideal for engineers, machinists, inspectors, and quality teams who need reliable go no go results to confirm part conformity. Designed for right hand threads in the M140 x 4 size with 6g tolerance, this gauge combines rugged durability with accuracy. Manufactured from hardened steel, it stands up to daily use in