JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6g - M100 x 4 Shrink Fit Holders repeatable hole finishing in a

repeatable hole finishing in a compact

The 12 mm diameter provides a balanced combination of rigidity and versatility

the combination of geometry

005 mm) and a left-hand spiral flute with right-hand cutting for efficient chip removal and a clean bore finish

Manufactured from HSS‑E (high-speed steel with cobalt)

JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6g - M100 x 4 Shrink Fit Holders repeatable hole finishing in aThe JBO Thread Ring Gauge (GO) is a precision tool for verifying external thread diameters on fasteners, fittings, and machined components. Designed for metric fine threads with a Right Hand orientation, it provides quick, reliable go no go checks to confirm parts meet the M100 x 4 standard. Crafted from hardened steel, this GO gauge delivers outstanding durability and wear resistance, standing up to the demands of busy workshops and production lines.