We are suppliers of surfcom touch 50 Roughness Tester and our machine come from the Japan Only and it is fully importad machine. Machine can be check Roughness, Weviness, Profile and it is very accurate its resolution is 0.0001 micron also customer check in Depth, Groove, ID Measurment, OD Measurement and also you can check with the long stlus we have many sylus rang as per your requirements we can suggest stylus with the Machine.