The Importance of Tight Tolerances in CNC Machining

Salco cnc milling machinePrecision machining is a process that involves the use of computer numerical control (CNC) machines to create precise, accurate parts and components. One of the most critical aspects of precision machining is achieving tight tolerances, which refers to the level of precision and accuracy required in the final product. In this blog post, we will discuss the importance of tight tolerance CNC machining and how they affect the quality and performance of the final product.

Tighter Tolerances, Better Fit

The tighter the tolerances are in a machined component, the closer they match their original design. Tighter tolerances directly result in more reliable and better performing components.

For example, in the aerospace and automotive industries, tight tolerances are crucial for ensuring that parts fit together seamlessly and function as intended. If the tolerances are too loose, the parts may not fit together properly, resulting in poor performance and even dangerous situations.

Enhanced Consistency & Efficiency

With tight tolerance CNC machining, the final product will be more consistent in terms of size, shape, and other characteristics. This is particularly important in industries such as medical device manufacturing, where consistent and precise parts are crucial for the safety and efficacy of the final product.

Tight tolerance CNC machining also allow for greater efficiency in the manufacturing process. With tight tolerances, the CNC machines can work at a higher level of precision, which means that less time and resources are needed to produce the final product. This can lead to cost savings and faster turnaround times for the customer.

Less Room for Error

When tight tolerances are used, the CNC machines can work with a higher level of accuracy, which means that there is less room for error. This can help to reduce the risk of eventual defects such as warping, cracking, or other issues that can affect the quality and performance of the final product.


All together, tight tolerance CNC machining is crucial in the everyday function of many of the machines and industries we utilize every day.

They play a crucial role in ensuring the proper fit and function of the final product, consistency, efficiency, and reducing the risk of defects. At precision machining shop, we understand the importance of tight tolerances and always strive to achieve the highest level of precision and accuracy in our products. Our state-of-the-art CNC machines, coupled with our skilled machinists, ensure that we deliver high-quality, precise, and accurate parts and components to our customers.

If you’re in search of a tight tolerance CNC machining shop near you, get in touch with us at Salco Global today and view our CNC capabilities online.