DAMO Diamond Concrete Granite Marble Cutting Tools: Efficient Industrial Drill Bits Review

The drill bit is strong enough, but the rod you buy extra on this page will bend the fourth time you cut the tile! As it was specially ordered here I was not able to leak and replace it at work (I cut 52 holes in tile and the same number holes in marble for a custom insert contract). Instead I had to go to Home Depot where I bought what appeared to be a very light Milwaukee bit and shank. I found this setup from Home Depot better than that beefy DAMO cutter. More water channels were cut into…

I bought two of these diamond core bits to drill about 6 holes in granite countertops. " which I placed on the counter and formed a circle pressed against the area I wanted to drill. Once the groove has started you can move the drill to the more usual "top down" position Moving motion that aligns the drill with the countertop surface Water helps keep airborne dust to a minimum and helps cool the tip of the drill (Important) Slow to medium drill speed is also important as you will be stopping…

It worked like clockwork. I and a friend made three holes in a 3/4 inch granite countertop and misted the area with a water sprayer. I also put masking tape on the area to be drilled and marked the circle (using the same 1 3/8 bit). Pencil. Here's what YOU NEED TO KNOW: Start drilling the hole at about a 45 degree angle. The drill hits the granite directly without rolling. (Duct tape can also help). Slowly move the drill up and down vertically while continuing to drill. I made three holes this…