JBO Thread Plug Gauge (GO) - Metric Fine - Right Hand - 6H - M100 x 4 FHH repeatable seating: Ensures stable alignment

repeatable seating: Ensures stable alignment in compatible tool holders

speeding up quality control and reducing the risk of misfits or rework

and component fabrication where accurate hole finishing matters

enabling access to deep grooves and intricate mold features without sacrificing stability

while the taper shank yields secure alignment in standard holders

JBO Thread Plug Gauge (GO) - Metric Fine - Right Hand - 6H - M100 x 4 FHH repeatable seating: Ensures stable alignmentThe JBO Thread Plug Gauge (GO) is a precision inspection tool designed to verify metric fine threaded holes. Specifically engineered for right hand threads of M100 x 4 with a 6H tolerance, this GO gauge helps engineers, machinists, quality inspectors, and workshops quickly confirm hole readiness. Crafted from hardened steel, it combines accuracy with durability for daily shop use. Designed for straightforward use, the GO gauge clearly indicates when a