CNC machining is a subtractive manufacturing process that uses rotating computer-controlled cutting tools like drills, end mills, and turning tools to remove material from a solid block of material, thereby shaping the part. Digital design files direct the CNC machines how to cut the block (also known as the “workpiece”) and multiple machines can use the same design file at the same time, which greatly increases the speed of the production process. CNC machining is a viable option for manufacturing parts with a range of materials, from plastic and metal to wood, fiberglass, and more.