JBO Thread Plug Gauge (NoGo) - Metric Fine - Left Hand - 6H - M52 x 3 End Mill Holders and 45° helix work together

and 45° helix work together to deliver smooth cuts and reliable performance in demanding pockets and complex geometries

The straight shank maintains stable alignment in your tooling setup

Durable Carbide for Long Tool Life: Built from carbide

The carbide tip resists wear for extended tool life

precise profiling of complex shapes

JBO Thread Plug Gauge (NoGo) - Metric Fine - Left Hand - 6H - M52 x 3 End Mill Holders and 45° helix work togetherJBO Thread Plug Gauge (NoGo) Metric Fine Left Hand 6H M52 x 3 is a precision measuring tool designed for metric fine threads. Its ideal for quality control teams, machinists, and workshop technicians who need fast, reliable checks of threaded holes. Specifically tailored for left hand metric fine threads, this NoGo gauge helps you confirm hole readiness with confidence and consistency. Built to endure daily use, the gauge features a durable hardened