Bosch EXPERT HEX-9 Hard Ceramic Tile Drill Bit - 6 x 90mm - 5 Pack

No, this bit is designed for rotary action only. Using the hammer drill function can damage the bit and the tile.

No, this bit is specifically designed for dry drilling and does not require any lubricants or cooling fluids.

This bit can comfortably drill tiles up to a hardness rating of PEI 5.

The EXPERT Hard Ceramic drill bit is engineered to last up to 10 times longer than a standard ceramic bit when drilling hard tiles, thanks to its Bosch Carbide Technology.

You need a drill with a standard three-jaw chuck or a 1/4" internal hex tool holder that can securely grip the Hex shank.

While optimized for hard ceramics and roof tiles, it can be effective on other hard masonry materials, but performance may vary. It is not intended for metal or wood.

The advanced, multi-faceted tip shares the workload over multiple asymmetric faces, enabling a precise start without skidding and preventing the bit from wandering on the tile surface.

Ensure you are using the correct drill speed (lower speeds are often better for tile) and applying steady, consistent pressure. Verify the drill is set to 'rotary only' mode, not hammer drill. Check if the tile's hardness exceeds the bit's rating.

Ensure the starting point is clean and flat. Use a piece of masking tape over the drilling spot to provide better grip. Apply light pressure initially to create a small divot before increasing pressure.

Reduce drilling pressure and speed. Allow the bit to clear dust from the hole periodically. Ensure the drill is not set to hammer mode.

The bit may be nearing the end of its lifespan or has accumulated dust. Clean the bit tip. If performance does not improve, it may be time to replace the bit.