Concrete Anchor Drill Bit Size Chart. Drill the hole a 1/2″ deeper than the anchor will penetrate the concrete, making sure the. Drill a 3/8 ” hole into the.

Drill a 3/8 ” hole into the. 4 rows what size hole do i drill for a 3/8 concrete anchor? Drill the hole a 1/2″ deeper than the anchor will penetrate the concrete, making sure the.