Makita B-57423 SDS Plus Drill Bit 4 mm

The Makita B-57423 SDS Plus drill bit with a 4 mm diameter is a precision-engineered accessory designed for high-performance drilling in masonry and concrete. Built to meet the rigorous demands of professional construction and renovation work, this drill bit ensures consistent results and structural integrity when creating holes for anchors, fixings, or electrical installations. Its robust construction allows for efficient material removal, reducing vibration and increasing the lifespan of the tool during intensive use.

Advantages

This drill bit features a specialized geometry that facilitates rapid dust extraction, which prevents clogging and allows for faster, cleaner drilling. The high-grade steel composition provides superior resistance to heat and wear, ensuring that the bit maintains its sharpness even after repeated use in abrasive materials. Its compatibility with standard SDS Plus chuck systems ensures a secure fit and optimal power transfer from the rotary hammer to the drilling surface, resulting in improved accuracy and reduced operator fatigue.

Suitable for

• Drilling pilot holes for masonry anchors
• Installing electrical conduits and cable clips
• General renovation and construction tasks in brick and concrete
• Precision drilling for wall plugs and fasteners

When it may not be suitable

This drill bit is not designed for drilling through metal, wood, or ceramic tiles, as the SDS Plus tip geometry is specifically optimized for masonry and concrete. Using this bit on inappropriate materials may result in damage to the tool or the workpiece.

Key specifications

• Diameter: 4 mm
• Shank type: SDS Plus
• Material compatibility: Masonry, concrete, and brick
• Design: Optimized for efficient dust removal

How to use

Insert the drill bit into the SDS Plus chuck of your rotary hammer until it clicks into place, ensuring it is securely locked. Before starting, mark the drilling location clearly to ensure precision. Apply steady, moderate pressure while the tool is running, allowing the bit to do the work. It is recommended to periodically pull the bit out of the hole while the drill is still running to clear out accumulated dust, which helps maintain drilling speed and prevents the bit from overheating.

What to consider before purchase

• Verify that your power tool is compatible with the SDS Plus shank system
• Ensure the 4 mm diameter meets the specific requirements of your fasteners or anchors
• Check the depth capacity of the bit against your intended application

Usage recommendations

Always wear appropriate personal protective equipment, including safety glasses and hearing protection, when operating a rotary hammer. Ensure the drill bit is cool to the touch before handling it after heavy use.