Drill Bit MEGA SDS+ 18 mm for Concrete, model 81840

MEGA SDS+ 18 mm drill bit (model 81840) is designed for percussion drilling in concrete and masonry. Compatible with SDS+ chucks, this single-diameter 18 mm bit produces precise holes for anchors, through-fixings and installation of fixtures. It is intended for use with rotary hammers in construction and renovation projects and performs in concrete, brick and natural stone.

Advantages

The carbide tip and flute geometry provide efficient dust removal and consistent drilling progress, reducing friction and bit wander. The SDS+ shank enables quick, secure tool engagement and vibration transfer control for stable drilling. The single 18 mm diameter ensures uniform holes for reliable anchor seating and repeatable installation results.

Suitable for

• Drilling 18 mm holes for anchors and bolts in concrete
• Creating through-holes for mechanical fixings in brick and blockwork
• Preparing mounting points for electrical boxes and plumbing fixtures
• Renovation tasks that require precise, repeatable percussion drilling

Key specifications

• Shank type: SDS+ compatible
• Drill diameter: 18 mm
• Intended material: concrete, brick, stone
• Design: single-diameter with carbide tip
• Tool compatibility: rotary hammer with SDS+ chuck

How to use

Secure the rotary hammer and insert the SDS+ shank until it locks. Position the bit perpendicular to the work surface and apply steady forward pressure while operating the percussion function. Start at low speed to establish the position, then proceed at normal drilling speed. Withdraw the bit periodically to clear dust and allow the flute to remove debris for continued cutting efficiency.

Usage recommendations

Use appropriate personal protective equipment including eye protection, dust mask and hearing protection. For anchoring, verify hole depth and clean the hole of dust before inserting anchors. Match drill speed and feed pressure to the base material; avoid excessive force to prolong tip life. Store the bit in a dry place to prevent corrosion and inspect the carbide tip before use for damage.