Presto Stantest Private Limited manufactures Coating Thickness Gauge with Steel and Iron Substrate. Presto Stantest Private Limited is an ISO 9001: 2000 certified company. The Coating Thickness Gauge with Steel and Iron Substrate bears the model number 1200. The minimum thickness of substrate is 0.2 mm or 0.008 inches and the minimum area is 10 x 10 mm 0.4 inches x 0.4 inches.