JBO Thread Ring Gauge (GO) - UNF - Right Hand - 2A - 1/2 x 20 Face Mill Arbors - Anti-Vibration 2 mm and a 4

2 mm and a 4 mm shank

and detailed contour work in both prototyping and production settings

It features a left-hand spiral flute with right-hand cutting for efficient chip control and stable cutting action

it uses high-speed steel (M2) and offers ISO H5 tolerance (-0 +0

Crafted from high-quality carbide and finished with a wear-resistant coating

JBO Thread Ring Gauge (GO) - UNF - Right Hand - 2A - 1/2 x 20 Face Mill Arbors - Anti-Vibration 2 mm and a 4The JBO Thread Ring Gauge (GO) for UNF right hand threads is a precision tool designed to quickly verify external thread diameters. It is sized for 1 2 20 UNF threads (2A class) and used to determine whether components meet the GO limit, supporting fast, confident pass fail decisions in quality control and manufacturing environments. Crafted from hardened steel with a durable knurled exterior, this GO gauge resists wear and maintains accuracy through