JBO Thread Ring Gauge (NoGo) - UNF - Right Hand - 3A - No. 0 x 80 NCDC Drill Chuck 68 mm reaming diameter for

68 mm reaming diameter for precise bore sizing

and through-coolant design helps you achieve accurate

Cutting direction: Right-hand cutting for standard reaming action

Four-flute design for efficient chip evacuation: Faster chip removal lowers heat buildup and cutting forces

5 size within the 6H class

JBO Thread Ring Gauge (NoGo) - UNF - Right Hand - 3A - No. 0 x 80 NCDC Drill Chuck 68 mm reaming diameter forThe JBO Thread Ring Gauge (NoGo) for UNF threads is a precision inspection tool designed to verify external thread diameters on fasteners and components. Its ideal for manufacturers, automotive trades, and aerospace suppliers seeking reliable, compliant thread fits aligned with the Unified thread standards. Built as a NoGo gauge with right hand 3A tolerance, No. 0 x 80 size, and hardened steel construction, it enables fast, repeatable go no go