JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M56 x 2 Boring Bar Blank and small-to-medium production environments seeking

and small-to-medium production environments seeking reliable performance on aluminum and similar metals

Through coolant: Flushed chips and improved cooling extend tool life while delivering smoother bore surfaces and better finish quality

reliable go/no-go assessment to confirm that your threaded parts meet exact size and tolerance requirements

and ISO H5 tolerance ensures repeatable results across multiple jobs

It complies with DIN 8093 and carries a tolerance of D = ISO H4

JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M56 x 2 Boring Bar Blank and small-to-medium production environments seekingThe JBO Thread Ring Gauge (NoGo) Metric Fine, Left Hand, 6g, M56 x 2 is a precision inspection tool designed to verify external thread dimensions quickly and reliably. Its ideal for quality control teams, machine shops, maintenance crews, and anyone working with metric fine thread fasteners who needs fast, clear pass fail results. Made from hardened steel for durability in busy environments, this NoGo gauge helps you identify non conforming threads at