JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M42 x 1 ER Collet Chucks it provides fast NoGo checks

it provides fast NoGo checks that help you quickly identify components that are out of tolerance

so you can focus on accuracy and throughput with confidence

It complies with DIN 212-B tolerance: D = 0 + 0

spiral-flute reamer is designed for accuracy and durability in metalworking projects requiring tight tolerances and clean finishes

BS 328/4 taper shank for secure mounting: Fits standard tool holders with minimal runout

JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M42 x 1 ER Collet Chucks it provides fast NoGo checksThe JBO Thread Ring Gauge (NoGo) Metric Fine, Left Hand, 6g, M42 x 1 is a precision inspection tool designed to verify external thread diameters. Its ideal for engineers, machinists, quality teams, and workshop technicians who need quick, reliable checks on threaded components to ensure they meet exact specifications. Crafted from hardened steel for durability, this NoGo gauge resists wear in busy shop environments and delivers long lasting