JBO Thread Ring Gauge (NoGo) - UNEF - Left Hand - 2A - 1/2 x 28 Hex Key Drill Chuck and achieve reliable results across

and achieve reliable results across a broad range of machining applications

standard length for easy setup: Fits common holders and reaming setups

06 mm diameter for accurate hole finishing in demanding machining environments

and hobbyist projects where accuracy matters

Size: Ø6 mm diameter with 75 mm overall length for extended reach in deep pockets and cavities

JBO Thread Ring Gauge (NoGo) - UNEF - Left Hand - 2A - 1/2 x 28 Hex Key Drill Chuck and achieve reliable results acrossThe JBO Thread Ring Gauge (NoGo) is a precise inspection tool designed to verify external threads to the Unified thread standard. Ideal for engineers, inspectors, manufacturers, and workshop teams, it helps ensure every threaded component meets exact specifications with quick, reliable checks. Built for real world use, this NoGo gauge features a hardened steel construction for durability in busy production environments. Its exacting profile supports