JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6g - M140 x 4 RPTECH while the left-hand spiral flute

while the left-hand spiral flute aids swarf evacuation and reduces chatter during manual reaming

It’s offered in multiple specifications to fit a range of mold and die applications

repeatable measurements and minimizing cross-threading risks in sensitive applications

it stands up to heat and wear for long-lasting performance

The Toolex Reamer is a high-precision straight shank reamer designed for engineers who demand reliable

JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6g - M140 x 4 RPTECH while the left-hand spiral fluteThe JBO Thread Ring Gauge (NoGo) Metric Fine, Right Hand, 6g, M140 x 4 is a precision tool for verifying external thread diameters. Its ideal for engineers, inspectors, machinists, and quality teams who need quick, reliable checks to confirm threaded parts meet exact standards. Precise NoGo verification: Quickly confirms whether the external thread diameter is within the allowed maximum size for metric fine threads, helping you catch out of tolerance