The cost of CNC machining is approximately between $25 and $250 per hour. However, this is an estimate, not a fixed amount. Many factors influence machining costs, especially when using a CNC system. Furthermore, the cost of prototyping differs significantly from that of mass production using CNC machine tools.
Prototyping is typically small-batch production, often used for sampling. In this case, very few pieces are produced. Therefore, the cost of CNC machining increases. The estimated cost per hour for prototyping is $45 to $300. Keep in mind that small-batch production is often more expensive for manufacturers.
However, mass production is generally cost-effective. Why? Because manufacturers use the same machining equipment and materials. They don't need to adjust the machines or use different equipment configurations. The manufacturer sets up the machine, places the materials, starts machining, and that's it when production is complete. The cost of CNC machining in mass production is lower, approximately between $15 and $175.
In addition, the shape of the required part also affects the price. Imagine you need a CNC part with an extremely complex shape. In this case, the cost of CNC machining will increase. Similarly, the machining cost for simple projects is low. Manufacturing parts with complex shapes requires advanced machinery and CNC cutting tools.

