JBO Thread Ring Gauge (GO) - UNF - Left Hand - 2A - No. 10 x 32 Face Mill Arbors - Through Coolant This 2-flute square end mill

This 2-flute square end mill with W coating delivers longer tool life and stable cutting performance on demanding materials

Carbide construction offers excellent hardness and wear resistance for repeated use

It features a 3-flute configuration and a 45° helix to optimize cutting action

curved features on narrow ribs with a high‑quality surface finish and accurate dimensions

JBO Thread Ring Gauge (GO) - UNF - Left Hand - 2A - No. 10 x 32 Face Mill Arbors - Through Coolant This 2-flute square end millThe JBO Thread Ring Gauge (GO) for UNF left hand threads (Left Hand 2A No. 10 x 32) is a precision inspection tool designed to verify external thread diameters to Unified National Fine standards. It enables quick, reliable go no go checks, helping machinists, inspectors, and production teams confirm that threaded components meet exact fit and tolerance requirements without guesswork. Crafted from hardened steel, this GO gauge delivers outstanding