when paired with a 30° helix
Sized for standard milling rigs
with predictable lead times
ISO 50 Compatibility with Durable Construction: Designed to fit BT (MAS) tool holders with ISO 50 interfaces and built to endure high-speed machining
it’s a specialized solution when precision and consistency are essential
JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6h - M9 x 0.5 Hydraulic Expansion Chucks when paired with a 30°The JBO Thread Ring Gauge (GO) Metric Fine, Right Hand, 6h M9 x 0. 5 is a precision tool for confirming external thread diameters. Built for quick Go No Go checks, it helps inspectors and machinists verify parts meet exact thread standards in production, assembly, and maintenance tasks. Crafted from hardened steel, the gauge delivers durable, wear resistant performance in busy workshops. Its simple, robust design makes it easy to use across teams,