Borenset Bosch Expert HEX-9 MultiConstruction 8 mm, 2-delig

Two-piece Bosch Expert HEX-9 MultiConstruction 8 mm drill bit set designed for reliable drilling in mixed building materials and for use on hard ceramic surfaces where compatible bits are required. Each bit features an 8 mm working diameter and a HEX-9 shank that ensures secure engagement in compatible chucks and holders. The set is intended to provide straightforward handling and consistent drilling performance for both professional tradespeople and DIY users working on masonry, concrete, plaster, brick and ceramic tiles.

Advantages

The HEX-9 shank design improves torque transfer and reduces slippage in SDS-plus or quick-change chucks that accept hex shanks, contributing to stable drilling under load. Precision-ground tips and optimized cutting geometry help maintain clean entry and reduce the risk of chipping on ceramic surfaces. Durable material and manufacturing tolerances ensure repeatable hole diameters and a long service life under normal working conditions. The two-piece format is compact and convenient for tool bags or jobsite storage.

Suitable for

• Drilling holes in mixed masonry, concrete and brick
• Installing anchors and fasteners in building substrates
• Creating holes in hard ceramic tiles when using appropriate drilling technique
• Professional maintenance, installation and renovation tasks
• DIY projects requiring consistent 8 mm holes

Key specifications

• Diameter: 8 mm
• Shank type: HEX-9
• Quantity: 2 pieces
• Intended materials: mixed building materials, masonry, concrete, brick, hard ceramic
• Application: MultiConstruction / HardCeramic compatible drilling

How to use

Select the appropriate drill mode and speed for the material being drilled. Secure the HEX-9 shank in a compatible chuck or quick-change holder so it seats fully and does not wobble. For ceramic tiles, start with a low speed and light pressure to avoid surface chipping, then increase speed and pressure gradually once the bit has penetrated the glaze. For masonry and concrete, use the hammer function where applicable and apply steady axial pressure; withdraw the bit periodically to clear dust and prolong service life. Wear appropriate eye and respiratory protection when drilling and follow the tool manufacturer's safety instructions.

Recommendations

Use a compatible holder or chuck that accepts HEX-9 shanks and match drill speed and mode to the workpiece. When drilling tiles, consider using adhesive tape over the entry point to reduce slippage and start at low speed. Clean drill dust from holes before inserting anchors to ensure secure fixing. Replace bits showing excessive wear or damage to maintain hole quality and safe operation.