JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M56 x 2 Boring Bar Blank and ISO H5 tolerance (DIN

and ISO H5 tolerance (DIN 8051 B references)

burr-free bore across multiple materials

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

With a sturdy HSS body

this reamer maintains sharpness longer under heat and friction

JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M56 x 2 Boring Bar Blank and ISO H5 tolerance (DINThe 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