JBO Thread Ring Gauge (NoGo) - UNC - Right Hand - 3A - No. 12 x 24 Face Mill Arbors and keyways on milling machines

and keyways on milling machines or CNC centres

this reamer helps you achieve precise bore dimensions with dependable performance

02 mm) with DIN 8051 B ISO H5 tolerance

and BS 328/4 compliance: Provides secure seating in machine tools and easy interchange with standard holders and tooling systems

JBO Thread Ring Gauge (NoGo) - UNC - Right Hand - 3A - No. 12 x 24 Face Mill Arbors and keyways on milling machinesThe JBO Thread Ring Gauge (NoGo) is a precision inspection tool for external UNC threads. Used across manufacturing, automotive, and aerospace environments, it helps verify that thread diameters conform to Unified Thread Standards, ensuring proper fit and reliable performance in assemblies. This NoGo gauge is designed for Right Hand threads, 3A class, No. 12 x 24 size, providing a clear NoGo limit for quick identification of non conforming threads and