JBO Thread Plug Gauge (NoGo) - Metric Fine - Right Hand - 6H - M55 x 1 FHH M2) for wear resistance and

M2) for wear resistance and durability

2-Flute Configuration for Smoother Cutting: The two-flute design minimizes chatter and cutting forces

Re-boreable and reusable for growing parts: Once bored

these features help you speed up setup

Pitch: Coarse-pitch design for rapid material removal

JBO Thread Plug Gauge (NoGo) - Metric Fine - Right Hand - 6H - M55 x 1 FHH M2) for wear resistance andThe JBO Thread Plug Gauge (NoGo) Metric Fine is a precision measuring tool designed to verify metric fine threaded holes. Specifically sized for M55 x 1, right hand threads with a 6H tolerance, it helps machinists, inspectors, and quality teams confirm holes meet spec quickly and consistently. Made from hardened steel with a knurled body and a color coded collar, this NoGo gauge is built for durability and easy handling in busy workshops. Its robust