1. Application: This plug and socket test gauge is mainly used to test and inspect whether the structure and size of Australian/New Zealand Standard plugs and sockets conform to AS/NZS 3112 standards. And the mainly application industries is electronics, electrical appliances, plugs and sockets and other similar areas.

2. Features: Gauge dimensions, tolerances, material, hardness, surface roughness conform to the standards requirements; Material hardness is more than 50HRC; Material thermal expansion coefficient is small,dimensions and tolerances is stable and reliable. The disposition of pins of flat-pin plugs of the types shown in Figure 2.1(a) and Figure 2.1(c) shall be checked by means of the appropriate gauge complying with Figure A1. The plug pins shall pass easily through the gauge at all depths of insertion.