While using a wet saw to cut mosaic tiles for a bathroom floor, we discovered that the water from the saw loosened the glue that holds the mosaics to their mesh backing. Some would come off, and the mesh - rather than remaining somewhat rigid - became pliable to the point where the tiles that did stay attached did not keep their proper spacing. It was a nightmare. So, we bought a score and snap tile cutter (after watching a video of the device being used to effortlessly and beautifully cut porcelain mosaic tiles) and discovered that the tiles we're using are too hard for such a cutter.Enter this blade. Attached to a sliding miter saw with good dust collection, this blade made quick and accurate work of dozens upon dozens of straight cuts. The cuts were clean when we started and clean when we finished. We started each cut moving the blade from back to front, just scoring the surface of the porcelain. Then we cut a little deeper in the same direction, and finished with a third pass from front to rear. This sounds like a lot of extra motion, but it worked out to a little over a minute for each sheet of tiles. The result was sharp edges with virtually no chipping.This blade is also set up like the ultra thin cutting blades we use for woodworking. The outer half of the blade (at the rim) is quite thin, removes (wastes) less material than a standard blade, provides less resistance when cutting, and has a thicker body at the center of the blade that keeps everything stiff and pretty wobble free. At the end of the job, the cutting surfaces on either side of the rim appear minimally worn. I suspect it could handle two or more similar jobs. One important heads-up. I forgot to turn on the dust collection a couple of times. Turns out dry cutting porcelain tile makes a spray of fine particles and plumes of dust. If you don't use effective dust collection, you will have quite a mess to clean up and porcelain dust in your nose, mouth, and lungs. A doctor would probably advise against the latter.What a pleasant surprise to get such a good blade at such a reasonable cost. Good on the manufacturer.Jim