JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 4h - M38 x 2 Hex Key Drill Chuck while the secure taper shank

while the secure taper shank reduces setup time and improves alignment in fixtures

compact mounting in standard toolholders for repeatable hole sizing and clean finishes in tight spaces

Shank: Straight shank compatible with standard hand reaming holders and chucks

gentle transitions on curved rib profiles

reducing rework and ensuring reliable fits on precision parts

JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 4h - M38 x 2 Hex Key Drill Chuck while the secure taper shankThe JBO Thread Ring Gauge (NoGo) Metric Fine Right Hand 4h M38 x 2 is a precision inspection tool designed to verify external threads on fasteners, bushings, and machined components. Its ideal for engineers, machinists, quality inspectors, and shop personnel who need reliable go no go checks to confirm threads meet exact size and pitch. Crafted from hardened steel for durability in demanding environments, this gauge maintains consistent accuracy over