Review on Dewalt DW5440 16 18 Inch Carbide by James Lozoya

Works better than expected. I drilled a small shallow hole in the wall. My 1/2" hammer drill quickly punched through a 14" poured shotcrete wall. The blow also went around the rebar in the wall. The beat was still sharp after work. Installing the pipe through this hole requires pipe less than 1/2 inch in diameter. I used PE tubing for my wires, but copper tubing would work well for plumbing.