JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M27 x 1 G high-speed cutting: Advanced material and

high-speed cutting: Advanced material and coating enable efficient dry cutting and high-speed feeds

with multiple neck-length options and a 6 mm shank for broad machine compatibility

and dependable bore quality across a wide range of materials

enabling more tasks without swapping holders

it stands up to daily workshop use and maintains reliable readings through years of inspection and assembly work

JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M27 x 1 G high-speed cutting: Advanced material andThe JBO Thread Ring Gauge (NoGo) Metric Fine Left Hand 6g M27 x 1 is a precision inspection tool for checking external threads. Designed for professionals across manufacturing, inspection, and assembly, it helps you confirm whether a thread matches the required size and tolerance at a glance. Crafted from hardened steel, this gauge offers durable performance in busy workshops. Its NoGo design quickly reveals non conforming threads, supporting reliable