... are used for measurement of thickness. Features:Dial thickness gauge is used for measuring thickness. Dial display for easy reading.Coontact points automatically ... . Various kinds of contact points are optional. Used for measuring thickness of paper ,film, wire, metal sheet ,jewelry, leather, etc..Specifications ... .01mm±0.02mm30mm 0-10mm326-2010.01mm±0.03mm120mm Dial Thickness Gauges