BRJ supplies all kinds of Thread Gauges listed in the API Spec.5B and API Spec 7-2.

when ordering,please specify:

Type of the Thread.

Size of Gauge.

Reference master or working gauges or smooth taper gauges.

Bos or Pin or both;Ring or plug or both.

Right hand or left hand,in case f API Spec 7-2 Thread gauges.