Drill bit GRAPHITE SDS+ 18 mm for concrete (57H486)

GRAPHITE SDS+ 18 mm drill bit for concrete is a rotary-percussion masonry bit engineered for drilling 18 mm holes in concrete, brick and block. The bit features an SDS+ shank for secure engagement with SDS+ chucks and a carbide tip for durable penetration and improved chip removal. Designed for use with hammer drills and rotary hammers, this bit suits both professional and DIY tasks that require a reliable 18 mm masonry hole.

Advantages

The SDS+ shank ensures fast bit changes and stable retention in compatible chucks, reducing wobble during drilling. A carbide tip provides wear resistance and maintains cutting performance when working on abrasive materials such as concrete and masonry. The flute geometry is optimized for efficient dust and debris evacuation, which helps sustain drilling speed and reduces binding. Overall design focuses on consistent hole size and extended service life under hammer drilling conditions.

Suitable for

• Drilling 18 mm holes in concrete and reinforced concrete (non-core drilling)
• Creating anchor and dowel holes in brick and block
• Use with SDS+ hammer drills and rotary hammers for construction tasks
• Professional trade work and home renovation projects

Key specifications

• Shank type: SDS+ compatible
• Diameter: 18 mm
• Tip material: carbide for masonry
• Suitable materials: concrete, brick, block
• Intended use: rotary-percussion (hammer) drilling

How to use

Select an SDS+ hammer drill or rotary hammer and insert the 18 mm bit into the chuck until it locks. Mark the drilling location and, when necessary, start with a pilot mark or low-speed positioning to prevent bit wandering. Set the tool to hammer/drill mode for masonry, apply steady axial pressure, and allow the tool's percussion action to do the cutting—avoid excessive force. Periodically withdraw the bit to clear dust and chips for efficient drilling and to help maintain bit life. For deeper holes, clear debris more often and ensure consistent alignment to preserve hole accuracy.

Usage recommendations

Use adequate personal protective equipment such as eye protection and a dust mask when drilling. For reinforced concrete, proceed with care and monitor bit wear; replace the bit if the carbide tip shows significant rounding or loss of cutting efficiency. Match drill speed and applied pressure to the material hardness, and use appropriate anchors or fasteners for a secure installation in the finished 18 mm hole.