J-40T - thickness Gauge up to 10 mm (+-0,01 mm), jaw 40 mm - for measuring the thiknes of Textile, Leather, Paper, Rubber, Foils,Felt,… Self closing thickness gage with high accuracy and resolution. Depth of jaw 40 mm, Measuring range up to 10 mm, Resolution 0,01 mm. Weight 0,3 kg.