JBO Thread Ring Gauge (NoGo) - UNEF - Left Hand - 2A - 1/4 x 32 FMH FLH FHH S&E A&NF M&D Taper Shank for Secure Toolholding:

Taper Shank for Secure Toolholding: Rigid seating in compatible holders minimizes runout and improves bore accuracy in milling and turning

letting you tailor the tool to your exact pocket depths and feature profiles

and manufactured parts requiring strict hole tolerances

Wide clamping range with round‑shank tooling: Covers 3–20 mm tooling within the ER32 standard

reducing interference and improving accessibility without sacrificing rigidity

JBO Thread Ring Gauge (NoGo) - UNEF - Left Hand - 2A - 1/4 x 32 FMH FLH FHH S&E A&NF M&D Taper Shank for Secure Toolholding:The 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