Bosch EXPERT Self Cut Speed Spade Bit Set - 6 Piece

This set is specifically designed for drilling in softwood materials such as pine, fir, spruce, and similar woods. It is not suitable for hardwood.

Yes, the Bosch EXPERT Self Cut Speed Spade bits feature an impact-rated 1/4" hex shank, making them fully compatible with impact drivers for efficient drilling.

The set comes with a tough roll-up case. Use this case to store the bits, keeping them organized, protected from damage, and preventing rust or corrosion.

The self-feeding threaded tip draws the bit into the wood with minimal user effort. This is especially beneficial when drilling overhead, in tight spaces, or when trying to reduce user fatigue during prolonged use.

The unique wave-shaped spade design is optimized for rapid chip removal. This prevents the bit from clogging and binding, allowing for faster, more efficient drilling and longer bit life.

The set includes six commonly used bit sizes: 13mm, 16mm, 19mm, 20mm, 22mm, and 25mm.

Using the bit on hardwood is not recommended and may lead to poor performance, excessive wear, potential damage to the bit, or the bit getting stuck. The design is optimized for the properties of softwood.

Ensure the drill is rotating in the correct forward direction. Apply steady, light pressure to allow the self-feeding thread to engage. Check that the wood is softwood; the bit may struggle or fail in hardwood.

Withdraw the bit slightly to clear chips. Ensure the wave-shaped spade is functioning correctly and not obstructed. The wood may be denser than typical softwood, or the bit may be dull.

Remove the bit and re-insert it, ensuring the hex shank is fully seated in the chuck. Tighten the chuck firmly. Check the chuck itself for any damage or debris.

Ensure the drilling surface is stable. Start the drill at a slower speed to create a pilot indentation before increasing speed. Check if the bit is damaged or excessively worn.