Using a smaller diameter concrete drill (3/16 or 1/4 size) drill a hole down in the subfloor at each of the dimples in the concrete.

How to install t-molding on concrete. Learn how to make perfect angles & seams and how to save. Edges on this desk were repaired a few times before. Drill at least 1 1/2 inches in depth.

Installing t molding on a concrete sub floor step 1: The floor plank that touches the t. Measure the length and width of the joint between the two floorings.

A hammer drill can make this.