JBO Thread Ring Gauge (NoGo) - UNS - Right Hand - 2A - 1 3/8 x 8 Face Mill Arbors - Through Coolant Flutes: 2-flute configuration for rigidity

Flutes: 2-flute configuration for rigidity and balanced chip evacuation

in HSS (M2) for precise manual finishing

89 mm diameter and standard length

lowering tool changes and downtime in demanding applications

75 right-hand threads in the 6e class

JBO Thread Ring Gauge (NoGo) - UNS - Right Hand - 2A - 1 3/8 x 8 Face Mill Arbors - Through Coolant Flutes: 2-flute configuration for rigidityThe JBO Thread Ring Gauge (NoGo) is a precision inspection tool for verifying external threads to Unified standards. Designed for fast, reliable go no go checks, it helps manufacturing, automotive, and aerospace teams confirm that threaded components meet specification before integration into assemblies. Sized for UNS Right Hand 2A threads in the 1 3 8 x 8 configuration, this gauge uses hardened steel construction for long life in demanding