WERNER® REUSABLE CONCRETE ANCHOR 3/4"" X 3"" DEEP DRILL HOLE THE REUSABLE CONCRETE ANCHOR IS A HIGHLY PORTABLE ANCHORAGE SOLUTION FOR CONCRETE CONSTRUCTION. WERNER REUSABLE CONCRETE ANCHOR IS A LIGHTWEIGHT EASY TO USE BOLT PROVIDING CONVENIENT ANCHORAGE IN CONCRETE. THE ANCHOR REQUIRES A PRE-DRILLED HOLE OF 3/4"" AND 3"" DEEP IN 3000 PSI CONCRETE. IT CAN BE USED IN ANY DIRECTION AS A FALL PROTECTION ANCHOR AND IS REUSABLE WITH ITS EASY TO INSERT AND REMOVE DESIGN.