eoocvt 60mm Diamond Hole Saw Tile Ceramic Glass Porcelain Marble Drill Bit Tools

The shower head hole that the people who tiled the shower put in was not big enough for the special square stem of the overhead shower head to fit into. This hole saw produced a very nice clean hole through the subway tile on the ceiling. Don't know how many cuts it would be good for but for this one it made the perfect hole. The hole was in the ceiling so we sprayed water on the diamond hole saw as we made the cut. Also stopped half way through and dunked it in water.

Was really impressed with this at the price it was, drilled holes in two Texas shaped glass bottles (republic tequila) to put air plants in and this bit worked perfectly even with the glass being pretty thick. Definitely use a bit of water while you’re drilling, keeps it cool and the dust from going everywhere.

I have cut over twenty bottle bottoms with this and the last cut was just as good as the first. I recommend slowing the drill speed down. I use a lubricant such as kerosene or radiator coolant to reduce heat build up and help move the glass dust away from the cut area thus keeping the cutting edge clear of glass build up.

I used the 60mm to wet cut 4 corner holes that called for 30mm radius on 2cm granite, I ended up using 2 of these. The metal is too thin that just the rocking action to clear debris caused the holes saws to warp resulting in a wobbly hole saw! It might be thick enough for smaller diameters but it isn't for the bigger sizes. Of course once its warped its harder to avoid getting it stuck which causes more warping. Not sure about the durability of the cutting surface since the warping probably shortened its life.

worked very nicely on a tank we already had

The drill is of poorer quality than I expected. But I did expect it to be a one-time use that may not complete drilling the hole I needed it for. I drilled 1-1/2 inches of concrete before the shank broke off. I'm going to try to use it with a hole saw mandrel that I own.Addendum:I was able to use my hole saw mandrel to complete the task. Also, the diamonds still seem to be ok, so I may be able to use the saw again, therefore I've updated my review to 2 stars. I also found a Ryobi universal mandrel that I already own that may work with the broken bit.

This did not even make it through one piece of tile without the piece bending and becoming unusable.

Needed to bore a hole through travertine patio tile. This bit was not up to the task. Couldn't even get through one tile before it wore out and then bent.