How far should the router bit shank extend into the collet?

The correct distance for the router bit shank to extend into the collet is 1/2 inch. This ensures a secure grip on the bit while maintaining enough length for effective cutting. A shank that is inserted at least 1/2 inch allows for adequate engagement with the collet, reducing the risk of slippage during operation, which could lead to dangerous situations such as broken bits or damage to the workpiece.

In tooling and equipment operation, ensuring proper insertion depth is critical for safety and efficiency. Insufficient insertion can cause the bit to wobble or dislodge while in use, leading to inaccurate cuts or potential injuries. Extending the shank too far beyond the minimum requirement is generally not advisable, as it can increase the risk of chipping the bit and diminishes the tool's effectiveness.