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

While the bit is durable, it's best used in drill-only mode when working with tiles to prevent chipping or damage to the tile and bit. The hex shank is designed for secure grip, but the hammer action is not necessary or recommended for this application.

No, the Bosch EXPERT HEX-9 Hard Ceramic Tile Drill Bit is designed for dry drilling. No lubricant or cooling is required, which simplifies the process and reduces mess.

This bit is designed to drill comfortably in tiles up to a hardness of PEI 5, which includes most hard ceramic and porcelain tiles.

It utilizes Bosch Carbide Technology and an advanced multi-faceted tip design. This combination provides exceptional durability and distributes the workload more effectively, leading to significantly longer bit life, especially on hard materials.

The HEX-9 shank is a 1/4" hex shank that provides a stronger, more secure connection in compatible drill chucks and tool holders. This ensures maximum torque transmission and reduces the risk of the bit slipping.

The pack contains five Bosch EXPERT HEX-9 Hard Ceramic Tile Drill Bits, each measuring 5mm in diameter and 90mm in length.

Ensure the drill is not in hammer mode. Start at a very slow speed and apply light, consistent pressure. Verify the multi-faceted tip is not damaged.

Reduce drilling speed and apply more consistent, lighter pressure. Ensure the bit is securely held in the chuck. Check for excessive dust buildup around the cutting area.

Confirm you are using a drill or impact driver with a compatible 1/4" hex receiver or a three-jaw chuck that can securely grip the hex shank. Ensure the chuck is tightened properly.

Ensure you are only drilling into materials within the specified hardness range (up to PEI 5). Avoid excessive force or overheating. Use the correct drill speed.