15PCS Diamond Hole Saw Drill Bit Set, Hole Saw Kit for Glass, Ceramic Flower Pots, Ceramic Tile, Marble, Granite, 6-50mm Ceramic Drill Bit

About Us and Our Products
We are a professional home renovation team. In practice, we’ve found this diamond drill to be extremely helpful for smaller projects! It’s very economical compared to expensive labor and specialized tools. I highly recommend it if you have some small, simple projects in mind.
Affordable Tools
Our diamond hole saw bit kits will give you a smooth and precise round! It does the job excellently whether you’re punching holes in glass or ceramic (you have to use it correctly, of course). You can use it to drill DIY holes in glass vases, drill drainage holes in ceramic planters, or use it for wall tiles in kitchens and bathrooms, marble and granite, and quartz too!
User’s Guide
① Clean the surface of the material.
② You can surround a reservoir with plumber’s putty or other material and make a model of the drilling with a board. (Keep the entire drilling process lubricated and watered down for cooling)
③ Tilt the drill at 45 degrees to cut a mark on the surface of the object, then move it slowly to be perpendicular to the surface of the object, i.e., the drill is vertical.  The entire process must be done at a lower speed and with water added.
④ The whole process must be done with lower speed and less pressure, and water must be added continuously for lubrication and cooling, otherwise the drill bit will burn out.
What You Can Get
6/ 8/ 10/ 12/ 14/ 16/ 18/ 20/ 22/ 25/ 26/ 28/ 30/ 40/ 50 mm, 15 sizes of diamond drill bits. Our whole-hearted quality service.