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Ships within 48 hours · Estimated delivery Aug 31 - Sep 5
and inspectors confirm hole sizes quickly and reliably
It features a taper shank for secure seating in standard toolholders
repeatable mounting: Fits standard tool holders and reaming setups
delivering exact NoGo checks to confirm hole acceptance against metric fine-thread standards
Secure ER20 compatibility: Provides reliable grip on round shanks within an ER20 chuck
JBO Thread Ring Gauge (NoGo) - UNF - Right Hand - 3A - 1 1/4 x 12 Milling Cutter Arbors and inspectors confirm hole sizesThe JBO Thread Ring Gauge (NoGo) UNF Right Hand 3A 1 1 4 x 12 is a precision tool designed to verify external thread diameters to Unified standards. Its built for engineers, inspectors, machinists, and quality teams who need quick, reliable checks on threaded parts. Ideal for manufacturing, automotive, and aerospace environments, this NoGo gauge makes it easy to identify non conforming threads and prevent misfits in assemblies. Crafted from hardened
