- 12pcs Masonry Drill Bit Set Tungsten Steel Drill Bit with 7 Sizes Drill Bits Cement Drill Bits for Glass, Tile, Brick, Cement, Concrete, Plastic, Wood, 1/8 to 1/2 inch Cross Drill Bit Tip

I have used these drill bits to drill tiles in my kitchen. Although I have used them only for the first time to make two or three holes, future use will make me confident about whether these drill bits are long-lasting or not. Some reviews state that these bits are unusable after two or three uses, but I have used them with the proper method. When drilling in tiles or concrete, you should keep drilling with some water applied or dip it in a water-filled bowl. This will protect your bits for long-term use. Without cooling with water, the head will melt or may break. However, I have noticed that it works smoothly without more pressure!! Price is little costly. I have used these drill bits to drill tiles in my kitchen. Although this is the first time I have used them to make only two or three holes, future use will make me confident about whether these drill bits are long-lasting or not. Some reviews state that these bits are unusable after two or three uses, but I have used them with the proper method. When drilling in tiles or concrete, you should keep drilling with some water applied or dip the bit in a water-filled bowl. This will protect your bits for long-term use. Without cooling with water, the head will melt or may break. However, I have noticed that it works smoothly without applying more pressure. The price is a little costly. But it feels like a good one with satisfaction!!

Quality is poor. Not value of money

If you like DIY projects like me, this is the most value for money product. Good quality build, engineered for ease. This drill bit set is a must have in your toolkit

These four items are not really good. They are actually threading on top. There is no carbon on top. Why would you order something like this? Those three bits are good. The other four are not good at all.

the 10mm bit broke it's head after 8 holes. The drill bit is precise, no doubt in that, if you are looking for sharp precession holes, and have very few holes to drill, this is best. It was a major hurdle for my project as the head broke half way while reaching the desired depth, I couldn't use that hole as the anchor bolt wouldn't sink, and another location wasn't an option. Had to redo everything as break/repair option wasn't possible.....

Very great performance and very good product.

Super product

I have been using these bits to drill into 2x4 vitrified tiles in the bathroom, to mount mirror cabinets, towel racks, corner shelves. They have worked well so far. What worked for me: 1. Always make a pilot hole with the smallest dia bit. Working alone, it takes me under 2 min to get through a tile and hit the cement plaster, including the time for water cooling the bit and removing debris. But with a helper to keep watering the bit during drilling, i think 30-40 sec is enough. 2. No need to use hammer mode, normal rotary mode drilling is enough. 3. Step up the bit dia size one by one until the desired hole dia. No need to drill the full desired depth with these bits, enough to get through the tile depth. Each takes under a minute to get through the tile including the interruptions to dip the bit in water, remove the debris sticking to the bit, etc. 4. After making a hole of the desired dia in the tile, switch to a masonry bit for the final hole through the plaster and brick or concrete block underneath. So far I have drilled 6 holes with one such set of bits, and all are still sharp enough for more. Extremely noticeable reduction in time, compared to earlier method of using the final bit size directly and switching to a diamond hole bit and then switching to masonry. If you do not make a pilot, and instead start off directly with a bigger dia bit, it will take half an hour to make a single hole, it will tire you out, will spoil the bit, and overload the drill machine. Why? Vitrified or porcelain tiles are VERY HARD. Not to be confused with CERAMIC tiles, which are almost nothing to drill through. Directly starting with a big dia bit means more work for the bit to remove more material, no clearance to remove the debris (as there is no pilot hole), the bit blunts quickly and after just one hole, the bit becomes useless. And you are tired out. These bits have done well so far. Will update this review if the performance of these bits changes. So far, I am very happy with them.