JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6H - M40 x 2 Power Milling Chucks DIN 206-B compliance with ISO

DIN 206-B compliance with ISO H5 tolerance: Precise final bore size and repeatable results that align with standard measuring practices and tooling families

helping reduce chip clogging and improve overall efficiency

HSS-E (M35 cobalt) construction: Delivers enhanced wear resistance and edge retention for longer tool life when finishing tough materials

while DIN 8093 compliance and ISO H4 tolerance ensure tight

and streamline production workflows across batches of metric coarse threaded components

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6H - M40 x 2 Power Milling Chucks DIN 206-B compliance with ISOThe JBO Thread Plug Gauge is a precision tool designed for metric fine threads, helping you verify threaded holes quickly and confidently. Built for engineers, machinists, quality inspectors, and shop environments, this left hand Go No Go gauge checks tolerance for M40 x 2 threads (6H) so parts mate smoothly on first assembly. Constructed from hardened steel, the gauge delivers dependable performance and stands up to daily use in demanding workshop