Spiral cutting drill bit Makita Nemesis B-20111

The Makita Nemesis spiral cutting drill bit is a high-performance tool engineered for demanding drilling applications in masonry and concrete. With a diameter of 25 mm and a total length of 520 mm, this SDS-Max drill bit provides the stability and power required for heavy-duty construction and renovation projects. Its advanced design ensures efficient material removal and consistent performance, even when encountering reinforced concrete.

Advantages

This drill bit features a specialized carbide head geometry that significantly reduces vibration and increases drilling speed. The robust construction minimizes the risk of breakage, while the optimized flute design facilitates rapid dust extraction, preventing overheating and extending the lifespan of the tool. Its precision-engineered tip ensures accurate centering and clean hole formation, which is essential for professional-grade installations.

Suitable for

• Drilling into reinforced concrete
• Masonry and brickwork applications
• Heavy-duty construction and renovation tasks
• Professional installation of anchors and fixings

When it may not be suitable

This drill bit is specifically designed for SDS-Max hammer drills and is not compatible with standard rotary drills or SDS-Plus chuck systems. It is not intended for drilling into wood, metal, or soft materials where high-speed rotation is required rather than hammer action.

Key specifications

• Diameter: 25 mm
• Total length: 520 mm
• Shank type: SDS-Max
• Material compatibility: Concrete, reinforced concrete, masonry

How to use

Insert the drill bit into the SDS-Max chuck of your hammer drill, ensuring it is securely locked in place. Position the tip of the drill bit at the desired drilling point and apply steady, firm pressure while the tool is in hammer-drill mode. Allow the drill bit to perform the work without forcing it, as this helps maintain the integrity of the carbide tip and ensures a straight hole.

What to consider before purchase

• Verify that your power tool is equipped with an SDS-Max chuck system.
• Ensure the 25 mm diameter meets the specific requirements of your fasteners or anchors.
• Check that the 520 mm length is sufficient for the depth of the material you intend to drill.

Usage recommendations

Always wear appropriate personal protective equipment, including safety goggles and hearing protection, when operating a hammer drill. Periodically clear dust from the hole during deep drilling to maintain efficiency and prevent the bit from binding.