SRS-Concept - RENISHAW OTS MOUNTING UPGRADE (3213)Do you already dissemble your OTS 3D touch trigger tool setter on your CNC machine ? Yes probably, and you probably see that your high end probe is made of aluminum and hardened stainless steel but you have to mount it with an ordinary steel t nut and a steel cap screw inside of it. This cavity is not accessible for washing and keep chips and old coolant inside until you dissemble it. That cause stagnant coolant will start the corrosion process