Royce//Ayr manufactures and distributes premium quality cutting tools for wood, composite, plastic, rubber and steel cutting applications for cnc routers and other machinery.  Royce//Ayr makes it easy to determine Feed Rates, Knife marks per inch & Chipload per tooth. View the recommended values in the charts located here and use the calculator to determine approximate settings for your machinery. The calculation results should serve as a starting point to determine optimum feed speeds and RPM for your machinery.