To maintain CMM accurcy, we recommend the use of a Styli Cleaner before measuring a part or calibrating a probe,

During touch probe measurement and particularly when scanning, contaminants such as dust, oil, coolant and oxides build-up on the stylus of your CMM. If CMM accuracy is to be maintained, these tiny particles must be removed by frequent cleaning.  Automated stylus cleaning is significantly more efficient than manual cleaning, which typically involves recalibration of each probe position after cleaning.The Styli Cleaner uses a combination of compressed air and detergent to remove contaminants from the stylus in just 30 seconds.