JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M42 x 1.5 4 Month Widin 15 mm nominal diameter and

15 mm nominal diameter and HSS-E (M35 cobalt) construction

reducing deflection and extending tool life for more reliable production runs

It is designed to finish holes to a tight tolerance

this 4‑flute end mill features a radius edge (R0

while M2 high-speed steel resists wear for longer tool life in demanding materials

JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M42 x 1.5 4 Month Widin 15 mm nominal diameter andJBO Thread Ring Gauge (NoGo) Metric Fine, Left Hand, 6g, M42 x 1. 5 is a precision external thread inspection tool designed for left hand fasteners and components. It helps engineers, machinists, inspectors, and maintenance teams quickly verify that thread diameters match the M42 x 1. 5 specification and stay within tolerance, enabling confident decisions before assembly or production moves forward. Metric fine, LH M42 x 1. 5 NoGo design: Precisely