Generic 10Pcs 6mm Diamond Coated Core Drill Bits Hole Saw Glass Tile Ceramic Marble -Y103

I brought back of 10 because some reviews said it can't drill more than 2 holes. Surprisingly I was able to drill 18 holes with 1 bit! I was able to DIY all the bathroom fittings of my new flat with just 1 bit and it is still good to drill a few more. The trick is to use this bit only until the tile portion is drilled and then change to regular masonry bit to complete the hole.

They cut well but won't last long,1 hole per bit with heavy water usage for hard floor tiles.

Vry useful to drill tiles, but care should be taken to ensure that the drill bit should not touch the concrete wall. Lest dimond powder coating will vanish making drill bit useless

I used 8 bits for one hole. Even the hole is not completed. All the bits are cut into pieces in first two rounds..i.e., wherever the powder coating is there.. up to that the hole go and it breaks. Such a cheap product I ever purchased on Amazon. Waste of money. Bits are not quality.

Does the job quite well, but it should be provided in a pack of 2 or 3, normal DIYs dont need a pack of 10, I understand the shipping and all, but at the end of the day customer will always focus on thier pocket

One drill is suitable for one hole only

Good enough for a single use drill bit if you want to make a hole in a ceramic piece / tile

So far so good. Drilled only two holes with it in porcelain tiles, it was like charm. Earlier I was trying with masonary bits, and really hard time. Wish I had these bits earlier. I don't know how long each bit will last, but hope expect it is value for money. Each hole will take 3-4 minutes. Keep bit cool with water. Only thing I didn't like was bits were slightly rusted when they reached. But no effect on performance