JBO Thread Ring Gauge (GO) - Metric Coarse - Right Hand - 6e - M39 x 4 Shrink Fit Holders Built from high-quality materials and

Built from high-quality materials and subjected to strict quality controls

Left-hand spiral flute with right-hand cutting: Engineered for efficient chip control and a clean bore finish

providing smooth cutting action

Straight shank with ISO H5 tolerance for reliable mounting: Easy mounting in standard collets and ensures repeatable hole dimensions at 8

Toolex ships within 24–48 hours

JBO Thread Ring Gauge (GO) - Metric Coarse - Right Hand - 6e - M39 x 4 Shrink Fit Holders Built from high-quality materials andThe JBO Thread Ring Gauge GO for Metric Coarse threads is a precision go gauge designed to verify external M39 x 4 threads with a right hand orientation and 6e class. Its built for professionals across manufacturing, engineering, maintenance, and quality control, delivering fast, dependable pass fail checks that help ensure proper mating and reliable performance. Precise GO gauge for M39 x 4 metric coarse threads: Quickly confirm external thread