Lytool 6 PCs Dry Diamond Core Drill Bits Set for Porcelain Tile, Ceramic Drill Bits for Glass Hard Materials, Granite,Ceramic,Tile,Quartz Stone, Round Shank 3/16,1/4, 5/16,3/8,1/2 inch (not for Wood)

Thank you for fast shipping works good for me

This set of drills can do just about anything. Good quality and size selection

Not high end, but I didn't need the best. These performed great for what I needed

These drill bits really came in handy for my diy 3-tier dessert stands. I had used another drill bit prior to getting these, and the difference was like night and day. The first bit took about 20 minutes to drill a whole in a porcelain plate, but these took about 1 minute to do the same task! It was such a relief to have a project that was taking days be finished in about 30 minutes.

I was a little intimidated trying this product for the first time but glad I did. Used for holes in porcelain tiles that a new carbon tipped masonry bit couldnt penetrate to hang tiolet paper holder. I started the hole with the masonry bit so don't know how the starter bit supplied would've worked but diamond bits worked great. Paused to cool bit in water periodically.

good bits

Not worth the price they break easily

These work well and each bit has it's own protective case. The video is very instructive on how to use them, especially on stone or tile. i used one of the bits to widen a large hole in metal and it did the job with my cordless drill set to high. Making a hole in tile can be tricky but my experience is to just take your time. They certainly work better than the "ceramic" drill bit I have that seems to take forever.I like these and they come in handy.