Bosch EXPERT Self Cut Speed Spade Bit - 18 x 152mm

This bit is specifically designed for fast and efficient drilling in all types of softwood, such as pine, fir, and spruce. It is not recommended for hardwood.

Yes, the 1/4" hex shank is impact-rated, making it suitable for use with both standard drill drivers and impact drivers.

The threaded tip is designed to actively pull the bit into the wood as it rotates. This requires much less downward pressure from the user, making drilling easier and faster.

The combination of the self-feeding tip and the wave-shaped spade design allows for rapid chip evacuation, preventing the bit from getting bogged down and enabling a higher drilling speed.

The product information specifies the length of the bit as 152mm. The drilling depth will be limited by this length, minus the portion inserted into the wood while engaged with the tool's chuck.

After each use, clear any wood debris from the spade and threaded tip. A brush can be helpful. Store the bit in a dry place.

The bit is not designed for hardwood. You will likely experience significantly slower drilling speeds, increased resistance, potential binding, and premature wear on the bit's cutting edges and thread.

Ensure the bit is correctly inserted and the chuck is tight. Verify you are drilling into softwood; the self-feeding mechanism is less effective or may not engage in hardwood or dense materials. Check that the threaded tip is clean and free of debris.

Clean the spade and flutes of wood chips and dust. Ensure your drill or impact driver is set to an appropriate speed setting. If drilling through thicker material, clear chips more frequently. If binding persists, the material might be too hard for this bit.

Remove the bit and re-insert it, ensuring the 1/4" hex shank is fully seated. Tighten the chuck firmly. If the shank or chuck appears damaged, discontinue use.