Marmonix roughness testers measure surface finish (Ra, Rz) on machined parts — portable gauges for quality control and inspection.Surface Roughness TestersMarmonix surface roughness testers quantify the texture of machined and finished surfaces, reporting parameters such as Ra and Rz to confirm parts meet specification. With precision styli, calibration standards, and clear digital displays, our profilometers support manufacturing quality control, machining verification, and supplier inspection.