What Are Machining Tolerances and Why Are They Crucial?CNC machining tolerances define how much variation is acceptable in a part's dimensions. These small allowances are key to ensuring functionality, performance, and interchangeability in precision components.Main Takeaways: • Tolerances allow for realistic manufacturing variation. • The tighter the tolerance, the more precise (and often expensive) the process. • Defining the right tolerance early on improves quality and re