What is the clearance range for a counterbore pilot?

The clearance range for a counterbore pilot is typically .002 to .005 inches. This range is critical for ensuring that the counterbore pilot fits properly within the hole being machined. A proper fit allows for accurate alignment during machining processes, which is essential for achieving the desired precision and functionality of the part being produced.

In this specific clearance range, the pilot will have enough room to allow for smooth operation without excessive play that could lead to inaccuracies. It also prevents binding, allowing the tooling to function effectively while maintaining the integrity of both the pilot and the workpiece.

Other ranges may be too loose or too tight, potentially causing operational issues or affecting the machining tolerances and quality. Therefore, understanding the correct clearance for a counterbore pilot is an important aspect of machining to ensure high-quality results.