4 1/2" Diamond Coated Hole Saw Drill Bit. You will get a perfect 4.5 inch hole through some really tough material.
Right size for drilling a hole through tiles for new toilet. Cuts Through Ceramic, Porcelain, Glass, Marble, Granite
Wet Type. Do not use dry. Pour water or built a dam around the cutting area with plumbers putty and fill it with water
Drills 1 inch deep.
There is no need for a Pilot Drill Bit. Pilots are not safe for glass.
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