JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6g - M3.5 x 0.25 ER Collet Chucks accurate tool seating for milling

accurate tool seating for milling and drilling tasks

helping you achieve accurate geometry without bogging down your setup

enabling reliable performance on hardened steels and demanding alloys

82 mm in diameter

repeatable diameter control

JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6g - M3.5 x 0.25 ER Collet Chucks accurate tool seating for millingThe JBO Thread Ring Gauge (NoGo) is a precision inspection tool designed to verify external metric fine threads. Specifically tuned for right hand M3. 5 x 0. 25 threads and 6g tolerance, this gauge helps ensure parts meet the exact thread dimensions required for reliable assembly. Its well suited for engineers, machinists, quality inspectors, and workshop teams needing fast, conclusive go no go checks. Manufactured from hardened steel, the gauge