75 left-hand coarse thread standard
accurate bore finishes in shallow or through holes
Using the JBO Thread Ring Gauge helps streamline your inspection process
The combination of taper control
delivering a reliable MT1 interface for lathes and milling machines
JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6g - M12 x 1.25 Face Mill Arbors 75 left-hand coarse thread standardThe JBO Thread Ring Gauge GO Metric Fine, Right Hand, 6g, M12 x 1. 25 is a precision tool designed to verify external thread sizes quickly and reliably. Its ideal for engineers, machinists, quality inspectors, and shop staff who need to confirm that threaded components meet exact specifications in production, assembly, or maintenance tasks. Crafted from hardened steel for durability, it resists wear in busy environments and maintains its accuracy over