JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6g - M39 x 2 A&NF and improve overall machining throughput

and improve overall machining throughput across metalworking

accurate holes when paired with through coolant

This reamer is engineered to deliver precise hole finishes with a tight H7 tolerance

delivering a smooth bore with minimal vibration and chatter

quick pass/fail indication

JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6g - M39 x 2 A&NF and improve overall machining throughputJBO Thread Ring Gauge (GO) Metric Fine Right Hand 6g M39 x 2 is a precision go gauge designed to quickly and reliably verify external thread diameters for right hand, metric fine threads (M39 x 2, 6g). Suitable for engineers, machinists, quality inspectors, and manufacturing teams, it helps confirm that M39 x 2 threaded components meet the required dimensions and will assemble correctly. Made from hardened steel, this gauge is built for durability in