Unik Gauges and Tools manufacture Progressive Type Plate Snap Gauges. Unik Gauges and Tools is an ISO 9001:2008 accredited company. Unik Gauges and Tools is the supplier of thread plug, thread ring, plain plug, plain ring, snap gauges & special gauges. Progressive Type Plate Snap Gauges has been available in the nominal range of up to 160mm. Progressive Type Plate Snap Gauges has the facility of single ended and it is provided in standard design. This snap gauge is also available in double ended type. These gauges are made out of Tungsten based oil-hardened non- shrinking steel [OHNS] duly tested for uniform microstructure and hardness.