Fischer 531844 Masonry Drill Bit, 20 mm Diameter, SDS+

The Fischer 531844 masonry drill bit is a professional-grade tool engineered for high-performance drilling in demanding construction materials. With a 20 mm diameter and a robust SDS+ shank, this drill bit is specifically designed to work seamlessly with rotary hammers, ensuring efficient power transmission and stable operation during heavy-duty drilling tasks in concrete and masonry.

Advantages

This drill bit offers exceptional durability and precision, thanks to its high-quality construction materials and advanced design. The SDS+ shank ensures a secure fit in the tool holder, minimizing slippage and allowing for rapid bit changes. Its geometry is optimized for fast dust removal, which prevents overheating and maintains consistent drilling speed even in reinforced concrete or hard stone surfaces.

Suitable for

• Drilling holes for heavy-duty anchors in concrete
• Installation of structural fixings in masonry
• Renovation projects requiring precise drilling in hard materials
• Professional construction and site preparation tasks

When it may not be suitable

This drill bit is not intended for use with standard drill chucks that do not support the SDS+ system. It is also not suitable for drilling into wood, metal, or soft materials where a specialized bit geometry is required to prevent damage to the workpiece.

Key specifications

• Diameter: 20 mm
• Shank type: SDS+
• Material compatibility: Concrete, masonry, stone
• Tool compatibility: Rotary hammers

How to use

Insert the drill bit into the SDS+ chuck of your rotary hammer until it clicks into place. Ensure the tool is set to hammer-drilling mode before starting. Apply steady, moderate pressure while drilling, allowing the tool's percussion mechanism to do the work. Periodically pull the bit out of the hole while the tool is running to clear accumulated dust and debris, which helps maintain drilling efficiency and prevents the bit from binding.

What to consider before purchase

• Verify that your power tool is equipped with an SDS+ chuck system
• Confirm the required hole diameter for your specific anchors or fixings
• Ensure the drill bit length is sufficient for the depth of your intended application

Usage recommendations

Always wear appropriate personal protective equipment, including safety goggles and hearing protection, when operating a rotary hammer. Inspect the drill bit for signs of wear or damage before each use to ensure safe and accurate performance.