Drill Bit MEGA SDS+ 18 mm for Concrete, model 81845

MEGA SDS+ 18 mm drill bit for concrete, model 81845, is designed for use with rotary hammer drills featuring an SDS+ shank. With an 18 mm drilling diameter, this bit is intended for drilling into concrete, masonry and other similar hard materials where impact drilling is required. The SDS+ connection ensures a secure fit in compatible hammer drills, allowing efficient transfer of percussive force and rotary motion for faster hole making and consistent performance on construction and renovation sites.

Advantages

The MEGA SDS+ 18 mm bit combines a hardened carbide tip and a flute geometry optimized for chip evacuation, reducing clogging and preserving cutting efficiency during prolonged use. Its SDS+ shank design provides stable locking in the tool chuck to minimize slippage and improve drilling accuracy. The bit’s construction is intended to withstand repeated impact loads typical for concrete drilling, offering stable hole quality and predictable penetration rates.

Suitable for

• Drilling anchor and dowel holes in concrete and reinforced concrete
• Making openings for electrical boxes and conduit fixings in masonry
• Piercing through brick, stone and blockwork during renovation
• Professional and DIY tasks that require reliable impact drilling with an SDS+ rotary hammer

Key specifications

• Drill diameter: 18 mm
• Compatible shank type: SDS+
• Intended materials: concrete, masonry, brick, stone, blockwork
• Tip material: carbide tip for improved wear resistance
• Application: impact drilling with rotary hammer drills

How to use

Install the MEGA SDS+ 18 mm bit into an SDS+ compatible rotary hammer according to the tool manufacturer’s instructions until it locks securely. Select an appropriate drill speed and impact mode for concrete or masonry, then position the bit at the marked drilling point. Apply steady axial pressure without excessive lateral force; allow the hammer action to advance the bit into the material. Withdraw the bit occasionally to clear debris when drilling deep holes. After completion, clean the bit and store it in a dry place to reduce corrosion and preserve tip integrity.

Usage recommendations

Use appropriate personal protective equipment such as safety glasses, hearing protection and dust mask when drilling. Pre-mark and, where applicable, use a center punch or pilot hole for precision. For reinforced concrete, reduce feed pressure when encountering rebar and consider using a dedicated rebar cutter or alternate technique. Replace the bit when the carbide tip shows significant wear or when drilling performance decreases.