1-3/8" Porcelain Diamond Hole Saw Drill Bit

This 1-3/8" porcelain diamond hole saw drills clean, chip-free holes through hard tile for plumbing supply lines, shower valves, and fixture bolts. The diamond-grit edge grinds through dense porcelain, ceramic, and natural stone where a standard bit would burn out or crack the tile.

At 1-3/8" it fits common pipe and valve stub-outs. Run it in a drill at moderate speed, keep the bit wet to cool the diamonds and clear dust, and let the grit do the work — no hammer mode. It suits both DIY bathroom updates and pro shower and backsplash installs.

Cutting porcelain is where cheap bits die; a diamond hole saw is the tool that lasts. Tile Outlets stocks it for clean penetrations on tile jobs.