JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 6H - M4 x 0.25 S&E Accuracy: Delivers consistent hole enlargement

Accuracy: Delivers consistent hole enlargement with tight tolerances and a smooth finish

while the stub length and straight shank enable stable mounting in standard toolholders

and dependable finishes that meet tight tolerances

and extended intervals between regrinds—helping you complete heavy milling passes with confidence and finish parts to spec

this end mill maintains sharpness and consistency even when machining tough materials such as hardened steels and alloys

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 6H - M4 x 0.25 S&E Accuracy: Delivers consistent hole enlargementThe JBO Thread Plug Gauge is a precision tool designed to verify metric fine threaded holes. It uses a Go No Go design to quickly confirm that M4 x 0. 25 threads meet the required size and tolerance, making it ideal for quality checks during manufacturing, assembly, and maintenance. This gauge is tailored for right hand threaded holes, helping you confirm proper fit every time. Go No Go design for fast, confident hole checks: Quickly determine if a