JBO Thread Ring Gauge (NoGo) - UNEF - Left Hand - 2A - 1/4 x 32 FMH FLH FHH S&E A&NF M&D Left-hand spiral flute with right-hand

Left-hand spiral flute with right-hand cutting: Promotes efficient chip flow and a smooth bore finish

Built for machinists who demand consistent size control and a smooth surface finish

06 mm nominal diameter is a precision finishing tool designed to refine pre-drilled holes to a tight

reducing interference and improving accessibility without sacrificing rigidity

and durable carbide construction stands up to demanding mold and die tasks

JBO Thread Ring Gauge (NoGo) - UNEF - Left Hand - 2A - 1/4 x 32 FMH FLH FHH S&E A&NF M&D Left-hand spiral flute with right-handThe JBO Thread Ring Gauge (NoGo) is a precision tool for verifying external thread diameters on fasteners, fittings, and machined components. Ideal for manufacturing, automotive, and aerospace quality labs, it helps you quickly determine whether a part meets UNEF thread specifications. Designed as a NoGo gauging solution, it provides an at a glance pass fail check that prevents undersized or oversized threads from slipping into assemblies, saving time