Drill bit Makita B-57928 — 1 piece, compatible with standard rotary drills

Makita B-57928 drill bit is supplied as a single piece and is designed for use with compatible rotary drills and SDS-PLUS hammer drills for standard drilling tasks. The bit features a tungsten carbide tip and a full-carbide head with a centering tip and four-cutter geometry to ensure efficient penetration into reinforced concrete and masonry materials. This single replacement or spare bit is suitable for workshop, construction, and household use when a reliable drilling accessory is needed for maintenance or small repair jobs.

Advantages

The full-carbide head and tungsten carbide tip provide high wear resistance and prolonged cutting life when drilling into hard materials. The centering tip improves accuracy at drill start and reduces walking on the surface, while the four-cutter design enhances dust evacuation and cutting efficiency. Compatibility with SDS-PLUS hammer systems ensures secure shank engagement and efficient energy transfer for percussive drilling in concrete and masonry.

Suitable for

• Drilling holes in reinforced concrete and structural masonry
• Installing anchors, bolts and dowels
• Repair and maintenance tasks in workshops and construction sites
• Occasional household drilling into brick, block and concrete

Key specifications

• SDS-PLUS shank type for use with compatible hammer drills
• Tungsten carbide tip for improved hardness and wear resistance
• Full-carbide head construction for consistent cutting performance
• Four-cutter geometry to aid cutting efficiency and debris removal
• Centering tip for accurate drill starts and reduced walking
• Designed for reinforced concrete and masonry applications
• Supplied as one piece (single replacement/spare bit)

How to use

Fit the SDS-PLUS shank securely into the drill chuck or hammer drill according to the tool manufacturer's instructions. Select appropriate drilling speed and hammer mode for concrete or masonry work. Position the centering tip on the marked drilling point, start drilling with light pressure to create the initial guide hole, then increase pressure steadily while allowing the drill and bit to cut. Periodically withdraw the bit to clear debris and prevent overheating. Replace the bit when cutting performance noticeably declines or the carbide tip shows damage.

Usage recommendations

Use appropriate personal protective equipment such as safety glasses and hearing protection. For extended drilling in reinforced concrete, allow the bit to cool periodically and remove accumulated dust. Match bit diameter and length to the anchor or fastener being installed and use a suitable drill with SDS-PLUS compatibility for optimal results.