SURFACE ROUGHNESS TESTER

Today, for the purpose of checking Ra values, the use of portable, hand held, surface roughness testers are not only economical, but are digital and easy to use. These surface roughness testers are a given necessity for any shop floor that receives work with Ra requirements... Surface roughness, for purposes of this forum, is the result of some machining process and its effect on the material surface in question... Surface roughness testers for quick, easy and accurate Ra measurement