Review on Durable Diamond Drilling Tools: Perfect for Cutting Granite, Porcelain, and Bathroom Tiles by Brian Whitmore

I was installing porcelain stoneware in a shower I was building and needed a way to cut a hole for the shower head bracket. I ordered this set and the 3/4" bit cut through the china much better than I expected. This is the second Drilax diamond drill bit I have ordered (I also ordered a 2-3/4" Drilax™ diamond drill bit. hole saw) and I love them so much and see no reason I would choose any other brand than should order Drilax I can't comment on the durability of this kit as I only had to drill one hole but it worked exactly how I wanted it at an incredibly low price I can say I've had several 2-3/ Drilled 4" holes in the same stoneware and this hole saw has held up great (much better than expected for the price).