Every gauge carries a calibration certificate giving actual values, For quick measurement of thickness of sheets, paper, leather etc. In series K130, K138/L and K142, K145, K150 measurement pressure is independent of the user, resulting in accurate readings of thickness. K138 ‘Push Down Type’ thickness gauge is particularly useful where fine measurement is not required – for example plywood, Well-balanced frames and handgrips coupled with lightweight make these gauges easy to use for measurement