Questions and Answers for DEWALT 5/16 in. Diamond Drill Bit

A:  No, this can not be used for 1" granite counter top.

A:  No, you will need a bit specifically for granite.

A:  Drilled 10 ceramic bowels from the inside with small amount of water inside. Began with bit at 45 degree angle to score the glaze and then slowly bring to 90 degrees. No problem.

A:  We'd be happy to help you and we would like to speak with you further. Please give us a call at 800-433-9258 so we may better assist you.

A:  Yes. We used a spray bottle filled with water and kept spraying water in the hole.. Make sure you don't drill fast. I looked up on the internet for information on how to drill through porcelain tile and found that keeping the diamond drill bit from overheating was key. We also used a plate guide which I found on Amazon to avoid the drill bit from walking on the porcelain tile. It was a really handy tool to use with this bit.

A:  Yes

A:  Yes, you can use a corded drill

A:  Absolutely, yes - I used it on my regular electric drill to install towel bars in porcelain tile (used a spray bottle of water to keep the bit cool and help the drilling along).

A:  Yes with no problems, keep it wet to make it last longer.