3/16" x 4-1/2" x 6-1/2" Rock Carbide SDS+ DW5403B25-SBD

Dewalt's 3/16-in x 6-1/2-in Rock Carbide SDS Plus Hammer Drill Bit 25-Pack (DW5403B25-SBD) is a high-performance masonry drilling solution designed for maximum durability and precision in concrete and stone. These bits feature a specialized ROCK CARBIDE tip that maximizes surface contact for a longer tool life and faster material penetration. To ensure structural integrity during heavy-duty use, the bits are engineered with a tapered core that resists flute breaks, while the four-flute spiral design efficiently clears dust and debris to maintain optimal drilling speeds.
Key Features
ROCK CARBIDE tip design maximizes carbide surface contact for significantly longer bit life.
Four-flute spiral design facilitates rapid debris removal for fast and efficient drilling cycles.
Tapered core provides enhanced structural strength to resist snapping, especially in deep-hole applications.
Two sharp carbide-cutting edges deliver clean, round holes essential for secure anchor installations.
Wear mark indicator provides a visual reference to ensure the hole remains at an accurate diameter for ANSI specifications.
SDS Plus shank ensures a secure, universal fit in all compatible corded and cordless rotary hammer drills.
4-1/2-inch usable drilling depth is ideal for setting mechanical anchors and small-diameter through-holes.
Bulk 25-pack configuration is optimized for high-volume commercial projects to reduce downtime.