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74 mm for finishing holes to ISO H5 tolerance
pass/fail verification of internal M20 x 2 threads to the 6H class
Durable hardened steel body: built to withstand daily use in busy workshops
Overall Length: 60 mm
Left-hand spiral flute with right-hand cutting: Enhances cutting action and chip evacuation for cleaner bore finishes and more consistent results
JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6h - M18 x 0.75 Face Mill Arbors 74 mm for finishing holesThe JBO Thread Ring Gauge (GO) Metric Fine Right Hand 6h M18 x 0. 75 is a precision inspection tool designed to verify external thread diameters on metric fine threaded components. It serves engineers, inspectors, machinists, and quality teams across manufacturing and maintenance environments, helping ensure every threaded part meets exact GO specifications and fit requirements with speed and confidence. Crafted from hardened steel, this GO thread
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