1/2x12 BSW Screw Ring Thread Gauge Go or NoGo whitworth

Specification 1/2 BSW Ring Gauge Option of Go or NoGo gauges 1/2" BSW Ring gauges comply to BS 84, BS 919 Part 2 Part Number ES-3926

For more information on 1/2x12 BSW Screw Ring Thread Gauge Go or NoGo whitworth talk to JLS Supplies Ltd