JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M20 x 1.5 Milling Cutter Arbors helping you achieve consistent hole

helping you achieve consistent hole quality even in demanding materials

reducing downtime from frequent tool changes and delivering long-lasting performance in tough materials

setup verification

BS 328/4 standard taper shank: Ensures secure mounting in common spindles and fixtures for dependable performance

4‑Flute Design for Efficient Chip Evacuation: The four flutes provide aggressive material removal with clean breakout

JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M20 x 1.5 Milling Cutter Arbors helping you achieve consistent holeThe JBO Thread Ring Gauge (NoGo) is a precision tool for verifying external thread diameters on threaded components. This metric fine gauge is designed for M20 x 1. 5 left hand threads (6g), making it ideal for workshops, manufacturing floors, and quality control labs that demand reliable size checks and quick decision making during assembly or inspection. Crafted from hardened steel for long lasting wear, the NoGo gauge delivers consistent