JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6g - M145 x 4 End Mill Holders 80mm is a carbide-tipped reamer

80mm is a carbide-tipped reamer designed to finish holes with precise diameter control

The straight shank and DIN 206-B specification ensure compatibility with standard reaming setups

maintaining accuracy over many inspections and long service life in busy workshops

reducing post-processing needs and variation across parts

JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6g - M145 x 4 End Mill Holders 80mm is a carbide-tipped reamerThe JBO Thread Ring Gauge (NoGo) is a precision tool designed for engineers, inspectors, and machinists to verify external thread diameters on threaded components. This Metric Fine NoGo gauge is tailored for right hand threads and is specified for M145 x 4 with a 6g tolerance, helping you confirm parts meet exact standards during manufacturing and quality control workflows. Built from hardened steel, this ring gauge delivers long lasting performance