JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6h - M55 x 1 Milling Cutter Arbors and carbon steel—making it a

and carbon steel—making it a versatile choice for demanding mold and die work

offering tight size control and a smooth finish in small holes

It is specified to ISO H5 tolerance (DIN 8051 B)

especially in through‑hole applications

this gauge delivers exceptional durability and wear resistance for long-lasting performance in demanding environments

JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6h - M55 x 1 Milling Cutter Arbors and carbon steel—making it aThe JBO Thread Ring Gauge GO Metric Fine Right Hand 6h M55 x 1 is a precision tool designed to verify external thread diameter to the M55 x 1 standard. Suitable for engineers, machinists, quality teams, and workshop technicians, it provides a quick, reliable go no go check to confirm threaded components meet exact specifications. Crafted from hardened steel, this GO ring gauge delivers durable, long lasting performance in demanding work environments.