1/2" x 12-1/4" Simpson SDS-Plus Concrete Drill Bit, Solid Carbide Tip, Pkg 1 HDU/HDQ/HHDQ Holdowns Holdown designs virtually eliminate deflection

Holdown designs virtually eliminate deflection due to material strech

One-step operation - drills and counterbores simultaneously for efficiency

Take the guesswork out of what fasteners you need with our APVB88R Kit that has the fasteners included to complete your project

See General Notes for Holdowns and Tension Ties

Any project needing rust resistance and a clean look

1/2" x 12-1/4" Simpson SDS-Plus Concrete Drill Bit, Solid Carbide Tip, Pkg 1 HDU/HDQ/HHDQ Holdowns Holdown designs virtually eliminate deflectionStrong Tie SDS Plus masonry drill bits feature a durable carbide tip and are designed for use in concrete, brick and block applications.