Simple Circuits In collab with JUSTWAY.com JUSTWAY · CNC Machining The Right Material Changes Everything. A complete guide to every material JUSTWAY offers for CNC machining — metals, plastics, composites — and exactly when to choose each one. 22 + Materials Online ± 0.025 mm Tightest Tolerance 3 – 5 Day Lead Time 150 + Countries Delivered The Foundation What is CNC Machining? Computer Numerical Control (CNC) machining is a subtractive manufacturing process that uses computer-controlled cutting tools to remove material from solid stock — producing parts of exceptional precision and mechanical integrity. ...