JBO Thread Ring Gauge (NoGo) - UNC - Left Hand - 2A - 1 1/2 x 6 NCDC Drill Chuck Left-Hand Thread Compatibility: Specifically designed

Left-Hand Thread Compatibility: Specifically designed for left-hand threading

and right‑hand cutting for predictable bore geometry

and detailed pocket or groove finishing

The carbide construction provides exceptional wear resistance for ferrous and non-ferrous alloys

JBO Thread Ring Gauge (NoGo) - UNC - Left Hand - 2A - 1 1/2 x 6 NCDC Drill Chuck Left-Hand Thread Compatibility: Specifically designedThe JBO Thread Ring Gauge (NoGo) for UNC left hand threads is a precision inspection tool built to verify external thread diameters with speed and confidence. Designed for use in manufacturing, automotive, and aerospace environments, it provides a straightforward go no go check to confirm thread conformity and proper fitment. This gauge is specifically tailored to UNC 2A left hand threads in the 1 1 2 x 6 size, delivering accurate, repeatable readings