JBO Thread Ring Gauge (GO) - UNC - Right Hand - 2A - 2 1/4 x 4.5 Hex Key Drill Chuck Left-hand spiral flute with right-hand

Left-hand spiral flute with right-hand cutting: Combines efficient chip evacuation with a stable

smooth holes with consistent tolerance

this reamer maintains cutting edge integrity under heat and extended use

with a transparent lead time that helps plan production and minimize downtime

a 45° helix for strong cutting edges and improved chip evacuation

JBO Thread Ring Gauge (GO) - UNC - Right Hand - 2A - 2 1/4 x 4.5 Hex Key Drill Chuck Left-hand spiral flute with right-handThe JBO Thread Ring Gauge (GO) for UNC threads is a right hand, 2A GO gauge sized 2 1 4 x 4. 5. Its designed to deliver precise external thread checks, helping inspectors, machinists, and quality teams quickly verify components meet Unified UNC standards. Crafted from hardened steel, the gauge resists wear and maintains tight tolerances in demanding environments. The GO configuration simplifies identifying conforming threads, speeding up quality