Masonry Concrete Drill Bit Set, Lytool 10Pcs Ceramic Tile Bits for Drill, Carbide Tip Hex Shank Bit for Brick, Tile, Wood, Glass, Plastic, Wall Mirror, Paver on Concrete or Brick Wall, 1/8" to 1/2"

I’ve only use them once, they worked very well on wood. My next job will be on concrete, I’ll see how well they hold up on that.

excelente calidad de materiales y fabricacion. Recomendables.

Did not fit my Ryobi impact drill

SUMMARY• I originally got these bits to bore mounting holes in the concrete-foundation of my house — having experienced serious problems in the past with the cheap, ‘garden-variety’ masonry bits I used in the past. The need for those holes temporarily went away, however, so I evaluated the bits via a prospectively more challenging task: boring a ½ inch hole in the bottom of a glass jar using the largest bit in this set — ½” of course. With considerable care and water cooling/lubrication, I succeeded.• Moreover, the inside of the hole was smooth enough to plug with a rubber stopper and experience no leakage when the jar was filled with water. The tungsten carbide cutting surfaces showed little sign of wear.• Bottom line: given that the glass was at least as hard as most concrete, these results suggest that the bits are adequately hard and symmetrical to make good holes in masonry.TESTS AND RESULTS1. I first filled the bottom of a 10 oz jar with water, set it on a piece of wood inside a water-tight pan resting on the table of a drill press, and positioned the bit of the ½” bit on the bottom of the jar. See the first photo.2. I then bored at the manufacturer’s minimum suggested speed of approximately 800 RPM with very light pressure. After a few minutes (the process was slow) the bit penetrated the glass and water started flowing out into the pan. Therefore, I filled the pan with water adequate to maintain a water level of approximately ¼” to 3/8” in the jar — for cooling and lubrication.3. I finished boring through. See the second photo.4. I inspected the hole. Looks fairly good. See the third photo.5. To evaluate the smoothness of the hole, I filled the jar with water, plugged the hole snugly with a rubber stopper, and checked for leaks out the bottom. No leaks appeared. See the fourth photo.6. Finally, I checked the ½” bit for wear, both visually and with my finger. No significant loss of sharpness was apparent. See the 5th photo. (Note that these bits have FOUR carbide cutting edges — not two, as in cheap masonry bits.)DISCUSSIONGiven the hardness and breakability of glass, the adequate smoothness of the bored hole suggests a quality product (though similar results might be difficult to achieve in GLASS with a hand-held drill). Moreover, the Mohs hardness of the jar’s soda-lime glass — 6 to 7 — compares practically to the Mohs hardness of concrete — 5 to 7 (6 to 7 for HARDENED concrete, which presumably is not used in residential construction).Overall I’m favorably-enough impressed with these bits to give them a 5-star rating.

My son is installing a mantle over his fireplace and needed to drill 8 holes for the brackets. The fireplace is made of hardened concrete 4" (or more) thick. We were unable to get more than 2.5" into the first hole. I don't think it is the drill bit. After drilling for 25 minutes, we finally quit. The drill bit was still as sharp as when we started. Maybe he'll have to try dynamite (just kidding people, lighten up). I like that these bits have a point so it should be able to go through tile easier than regular masonry bits.

I'm very impressed by this drill bit kit! It comes with a great selection of different sizes, it fits both my regular drill and impact driver, and I like that the size is clearly printed on each bit. And the storage case, although simple, it's very useful. Every bit has its place, and it's easy to see the full selection when you pick the bit you need to for the job. I have used several of these bits on concrete, tile, stone, wood, glass, plastic and it went through all materials like butter and without causing any damage to materials or the drill bit. I'm super happy with this kit and have been recommending it to others.

I bought these for one thing, specifically to bore holes in brick and concrete. I’ve had a lot of issues with cheap bits, and the cheaper bits don’t work at all. I was pleasantly surprised with these bits. They worked much better than similarly priced bits.The only caveat is that these are specialized bits. The work well with hard material, but not metal. These are not all-around bits; they are for a specific propose. I don’t have an issue with that, as I understand the tool has to fit the job sometimes, but some people may want a more universal bit. I don't care much about this as it's almost impossible to find an all-around bit that works on masonry, so I didn't downgrade my review for this reason.One very nice feature is the hex shank quick attachment. That is extremely useful, and a great feature to use the bits. It can be a pain to change bits, and that makes it much easier.

Low / no durability for any drilling other than wood or concrete block. Stone, glass, tile, clay, etc. is unfazed by these worthless drill bits.

This set of masonry bits is excellent. Did the job for me as advertised and a good size range, Works perfectly, used one of these drill bits just to see how fast it would make a hole in concrete, they work faster and will last longer and I have no doubts.

Buon prodotto qualità prezzo

sehr schnelle Lieferungsehr gute Qualitätmachen, was sie sollentoll

Goede boren om in keramiek en beton te boren.

Magnifique