3.1/4x12 UNS - 2B Screw Plug Thread Gauge Go / NoGo

3.1/4x12 UNS 12tpi Go / No-Go screw plug gauge Conforms to BS1580, BS 919 Part 1 Class 2B 3 1/4x12 UNS Calibration certificate option

For more information on 3.1/4x12 UNS - 2B Screw Plug Thread Gauge Go / NoGo talk to JLS Supplies Ltd