JBO Thread Ring Gauge (NoGo) - UNF - Left Hand - 2A - 3/8 x 24 End Mill Holders and provides a dependable tool

and provides a dependable tool for ensuring parts meet required standards and specifications

and helps you maintain tight tolerances with every part you inspect

78 mm size fits standard applications

professional countersinks with clean edges and minimal burrs

repeatable results with predictable lead times

JBO Thread Ring Gauge (NoGo) - UNF - Left Hand - 2A - 3/8 x 24 End Mill Holders and provides a dependable toolThe JBO Thread Ring Gauge (NoGo) is a dedicated tool for verifying external threads on left handed components. Engineered for UNF 3 8 x 24 with a 2A tolerance, it helps quality teams in manufacturing, automotive, and aerospace confirm that parts meet standard diameters. Crafted from hardened steel for durability, this NoGo gauge delivers reliable, repeatable measurements in busy shop environments. Left Hand UNF 3 8 x 24 NoGo design: Precisely sized to