Step 3. Drill Pilot Holes
Use the 12V MAX* Cordless Lithium Drill/Driver and a 1/8” drill bit to drill pilot holes 3/8” above the bottom edge and spaced 4” apart, along the bottom of all four pieces of mahogany board.
Tip: Depending on what type of screw you're using, pilot holes should be just slightly smaller than the screw. The idea is to allow the hole to be big enough for the screw to pass through without splitting the wood, but at the same time, small enough so that the threads grip firmly.