Neilsen Countersink Drill Bit Set - 7pc

This set is designed for use on wood and plastic.

Start with a moderate speed and adjust as needed, depending on the material and bit size.

Select the bit size that corresponds to the screw size you are using. The drill bit should be slightly smaller than the screw's major diameter.

Wipe the bits clean with a soft cloth after each use to remove any debris.

No, this set is not designed for use on metal. Using it on metal will damage the bits.

The countersink creates a recessed area for the screw head, allowing it to sit flush with the surface.

Store the bits in a dry place. The set usually comes with its own storage case.

Reduce the drill speed and apply less pressure. Use a sharp bit.

Adjust the countersink depth or use a bit with a wider countersink angle.

Ensure the bit is sharp and clean. Check the drill speed and pressure.