Rokrou Diamond Hole Saw Set 15 PCS Tile Hole Saw Kit with Drill Guide from 6mm-50mm /1/4‘’- 2” for Ceramic,Glass,Porcelain,Marble

Update: The seller reached out to me after reading this review and offered a full refund or replacement. :) Original review: No instructions for the guide are included in the box. I stuck the guide to a clean, flat matte finish ceramic tile (not over a grout line), pressed the lever down, and there was enough suction to keep the guide on the wall, but not enough to keep it from wandering once I started drilling through the tile. I ended up making my own jig out of wood and clamping it in place to keep the bit from wandering. I drilled at medium speed using moderate pressure, pausing every ten seconds or so to mist the area with water. The 40mm bit worked fine, and got through the 7mm ceramic tile in a couple of minutes.

The little bracket thing falls apart every time and I only got two uses out of the bits

In general work well. But first out of the box failed in 2 minutes. Would have given 5 star because it was inexpensive, had first not failed so fast

The suction cup doesn’t work on all tile

Update: Seller contacted me after the following review and offered to replace or refund. Also, after reading other reviews I would like to add a reminder to always use these with water (if you want them to work for more than 1 hole). That goes for any continuous surface diamond cutter. Keep applying water as cutting surface dries. Water will also help flush out the debris. Great selection of sizes for the price. Dont expect to do cut a lot of holes with any one. Found the diamond coating on the inner surface flacked off on the two larger sizes I used. Handy to have the selection of sizes for the occasional use. The slot for debris removal on the smaller sizes is too small. Kept having to stop and try to clean out the debris, which often got stuck inside when drilling porcelain tile. The 1/4 size lasted for about 11 holes going through 3/8 porcelain, thinset, and hardie board (about an inch thick). Should have invested in a good 1/4 diamond holesaw with large debris flute sooner. Way faster.

Bits have lasted many holes Guide is helpful

Used one time and it worked good to start the hole but the suction cup did not hold. But, I got the hole started and the was the main thing. I don’t know how long it will last since it is plastic.Good for the price

Followed the instructions and worked perfect. Installed new soap dispenser to eliminate counter clutter.

great value for simple projects - not professional grade. perfect for homeowner - USE A SPONGE TO KEEP WET, SLOW AND EASY ON PORCELAIN. 10 holes in porcelain w one bit so far. slow and easy take your time its not wood.

Overall, the price is good for all these bits and a single project.