JBO Thread Ring Gauge (NoGo) - Metric Coarse - Left Hand - 6g - M42 x 4.5 NCDC Drill Chuck purpose-built tool for your project

purpose-built tool for your project

Taper Shank for Secure Mounting: Quick

it supports consistent results across batches

86 mm diameter is ready to support precise

helping maintain consistent finishes across multiple passes and jobs

JBO Thread Ring Gauge (NoGo) - Metric Coarse - Left Hand - 6g - M42 x 4.5 NCDC Drill Chuck purpose-built tool for your projectThe JBO Thread Ring Gauge (NoGo) Metric Coarse, Left Hand, 6g, M42 x 4. 5 is a precision inspection tool designed to verify external thread diameters on fasteners, fittings, and machined components. Its NoGo profile provides a straightforward pass fail check to confirm threads meet the intended size and tolerance. Designed for professionals across quality control labs, machine shops, and assembly lines, this gauge helps ensure metric coarse threads