12-PCS Concrete & Masonry Drill Bit Set, Cement Drill Bits for Concrete Brick Wall, Tile Glass Ceramic, Masonry Drill Bit 1/8 to 1/2 inch Industrial Strength Carbide Cross Drill Bit Tip

Works that's expected

Awesome bits

Liked that it included alot of different sizes. Problem with alot of masonry bits is they get dull and stop working. They tend to travel and make a larger hole than wanted. I hope theses work better and drill through porcelain without cracking the tile. We shall see

Works well to drill into bricks.

Excelente calidad

These wear down fast. Good for use around the house but not large projects.

Very good bit set. These new design tips work very well. They really do punch into concrete like soft wood. I would buy again

Night these cause i work on homes and often have to drill in some concrete. I needed something effective. These folded in the first 5 mins is use.I was drilling the hole, got in just passed the tip, and it folded at a half inch and folded back a halve inch, almost like a perfect 90°. Don't get me wrong, it looks neat, but that's not what i bought it to do.They are too soft. If i got offered a replacement set, even after they may have improved their product, I would still choose to ask for a refund first. I keep the one that folded to show others.