Tungsten Carbide Tile Drill Bit Set (1/4–1/2'' / 6–12mm) for Porcelain Ceramic Granite Glass Marble Wood, 1/4'' Hex Shank, 4-Cutter Eccentric Step Design, Dry & Wet Use— Metric+Imperial

first of all I was impressed by the case. It has a slide open button that works easily. Inside the bits are held in such a way that you have to tip the bit up to remove it from the case. No more bits sliding all over the case. I tried one of the bits on four different materials. Glass which I broke because i didn't use the bit properly. I tried again and it drilled straight and true. It didn't skate around. It took a whild to get through the glass with the tip of the drill, but once I did it drilled efficiently without breaking or catching. Next i tried brick which it drilled very easily. Next was the ceramic tile and again it drilled easily. The final material was wood and to my suprise the drilling action was slower than either the brick or tile. After drilling through the 4 materials I was pleased because I could not tell any difference in the sharpness of the bits between the new ones in the case and the one I used. I think that they are a good value for the money.

I wasn't sure what to expect when purchasing these bits, with their different design but, I have been very pleasantly surprised at how well they have preformed. Bathroom tile, acrylic, plastic tubing and wood, it preformed well with each and left very smooth holes. I did not have the chance to use them with glass, brick, porcelain tile or stone but, I have faith that they will preform equally well with those, too. I would definitely recommend using a cooling fluid for denser, harder materials, as the bits do get hot even on ceramic tile. The bits did a nice job when using them with a drill but got a lot better results when able to use the bits with a drill press. Being able to precisely control the speed of the bits allowed them to remain cooler and cut smoother, and faster, as intended. I believe the unique design allowed the bits to stay cooler, cut faster, and make a cleaner hole over the more traditional shaped bits. I am very happy wiht this set and look forward to a lot of use with them, and many, many holes... I have had a lot of postitive results with Lytool brand products and this yet another of their great products that I would highly recommend!

I use this set with my cordless SDS whenever I need to drill a hole in masonry. The selection of sizes seems to cover anything I have had to do to date, excepting the very largest stuff that requires a larger machine. For most work around the house, these work just fine.

These bits do what they claim to. No "walking" and a clean hole through a ceramic tile with minimal pressure needed. The case is also well-designed and functional.

These are an outstanding bang for your buck. Even if they might not last as long as a name brand you(yet to be determined). Initial use they are just as good as any name brand bits that I have used. Save time and money having the right tool in hand for the job. We will see how they hold up long term.

they work great! i was low on all sizes, and couldn't beat the price, although they got some surface rust on them from being exposed to the elements it hasn't impleaded performance

Cut well, come in a nice plastic tube.

Las más finas son débil. Las gruesas trabajan muy bien.

Die Bohrer sind gut verarbeitet

Degelijk materiaal !

Very good for the price. Probably as good as my Bosch ones. If I was to say one criticism, it would be I wish they did a longer set. Starting at 210mm long up to 450mm.

Son de buena calidad

Everything is as described.