Checkline F-1101-30-01 Thin Foil Dial Thickness Gauge, Measuring Range 0.1 mm with 30 mm Depth of  Jaw. Measuring range: 0.1 mm, Resolution: 0.001 mm, Accuracy: ± 0.5 µm. This handy thickness gauge is used exclusively to measure the thickness of thin foils. The frame has the required rigidity, the insulation of the handle prevents transfer of heat from the hand of the user to the sensitive mechanical parts of the Dial Gauge. The applied pressure is approximately 2 N.