Review on 💎 DEWALT DW5572 4 Inch Diamond Drill: Unleash Precision and Power in Your Projects by Mark Harrison

I ordered this drill bit to drill three holes in 0.4" thick porcelain stoneware to install a freestanding bathtub faucet. The holes had to be positioned exactly so that the square tube was flush with the wall. I drew a circle on the porcelain around the denture with a medium black marker. You should start the hole at a 45 degree angle and then angle the drill vertically after it has penetrated the porcelain. I made three 1 1/2" water dams around the holes with plumbing and added some water. I could see my circles under clear water and positioned the edge of the drill bit just inside the circles to start cutting at a 45 degree -Angle to start. I pressed one hand firmly to the ground and held the drill and drill bit to start each hole. Once you start drilling, the water gets cloudy, so don't move from your starting position. The Bit cut three perfect holes My faucet came right out with the wall I would buy this drill again if I needed it but the drill I bought seems able to handle a few more holes before it's finished. This was my first attempt at drilling holes in porcelain stoneware. The tile was new and I didn't want the tile to crack. I've drilled into concrete many times, but porcelain requires a diamond tipped drill bit ze.