13/16" x 21" Simpson SDS-MAX Quad Head Concrete Drill Bit, Carbide Tip, Pkg 1 Decorative Gable Plates The screw’s patented tip drives

The screw’s patented tip drives fast and clean into wood with no pre-drilling

After the anchor reaches the bottom of the drilled hole

while a sharp Type 17 point delivers fast starts

Durable silicone construction: Resists extreme temperatures and UV rays

This product is intended for use with 6x6 lumber but is also available in other sizes

13/16" x 21" Simpson SDS-MAX Quad Head Concrete Drill Bit, Carbide Tip, Pkg 1 Decorative Gable Plates The screw’s patented tip drivesStrong Tie SDS MAX masonry drill bits feature a durable carbide tip and are designed for use in concrete, brick and block applications. California Residents: WARNING