The JBO Thread Plug Gauge (GO) - Metric Fine, Right Hand, 6G, M55 x 1.5 is a precision inspection tool designed to quickly verify threaded holes meet exact specifications. Built for engineers, machinists, quality teams, and shop floor technicians, it provides a reliable go/no-go check that confirms hole dimensions with minimal effort.

• Precision Go Gauge for M55 x 1.5 Metric Fine Threads: Quickly verify that threaded holes will accept the GO gauge, helping ensure compliance with the M55 x 1.5 specification and reducing trial fits.
• Hardened Steel Construction for Long Life: Crafted from hardened steel to resist wear, maintain accurate tolerances, and endure daily use in demanding environments.
• Easy Handling with Right‑Hand, Knurled Design: The knurled body and right‑hand orientation provide secure grip and straightforward alignment, enabling fast, repeatable checks across operators.

Using this plug gauge in your quality control workflow helps shorten inspection times, reduce rework, and deliver consistent results across batches. It provides a dependable, durable solution for verifying metric fine threads and the M55 x 1.5 hole size, giving you confidence that every part meets spec before moving to the next stage of production.