JBO Thread Ring Gauge (NoGo) - BSW - Right Hand - Medium Class - 1 3/8 x 6 RPTECH this reamer helps you finish

this reamer helps you finish holes to precise dimensions on the first pass

and maintain high-quality workmanship across plumbing

ER25 Compatibility & Secure Grip: Works with standard ER25 collet chucks to hold tapping tools firmly

The straight shank fits easily into traditional hand reaming tools

Rigid tapping for precise thread formation: Delivers consistent thread depth and pitch

JBO Thread Ring Gauge (NoGo) - BSW - Right Hand - Medium Class - 1 3/8 x 6 RPTECH this reamer helps you finishThe JBO Thread Ring Gauge (NoGo) is a precision tool built to verify external BSW threads. Designed for right hand, medium class threads in the 1 3 8 x 6 size, it helps shops and QC labs quickly confirm that threaded components meet the required limits. This gauge supports manufacturers across automotive, aerospace, and general machining by providing a clear, fast assessment of whether a part is within specification. Manufactured from hardened steel,