Used it in a circular saw, worked worked great for me and it saved me from needing to buy a new saw for just 4 ft of cuts. Here's a tip: because this saw is so thick, the saw's blade holder, the arbor, wasn't catching on the blade after the first cut. So the motor would spin, but the blade wouldn't spin with it. Took me an hour after trying other ideas to just remove the two gold rings inside the blade (easy to do) i put it back on center and reinstal the arbor. It finally caught this time and the blade spun with the motor. Really easy to cut marble (make sure to use water near constantly).Really glad i purchased it, saved me a fortune. Just remove the rings if you need to!Cuts through glass like butter! I am a rookie with an angle grinder, but I bought one to do some chores around the house. I decided to tile my backsplash myself, and I bought glass tiles for the job. I needed to be able to cut the tiles, and I decided that the angle grinder would be easier than the traditional score and snap method of cutting tiles. I did not want the hassle and expense of a wet table saw for cutting the tiles.So I bought this saw blade and it cut through the tiles so fast and easy, that I started looking around for other tasks I could perform with my new rig. This is an excellent blade. After completing the cutting for a good-sized backsplash, the blade shows no signs of degrading in any way. I had bought a spare (different brand) in case one did not perform. Now I will return the extra blade and continue to look for uses for my new toy.Did some DIY tile setting in my condo entryway. Got about 30 nice 12x12 Italian ceramic tiles from the Habitat for Humanity ReStore for only $30 and bought this blade to cut about 9 or 10 of the pieces with the little 20V Li-ion 6-1/2" cordless circ saw. Clamped the tile down, cut with one hand, used a little spray bottle with the other hand. Kept the dust to a min and worked just fine. Saved me a bundle. Tile job came out great. Only four stars because the tile did not cut itself.I using this blade on my angle grinder to cut Hardiboard and it works beautifully (so much better than the recommended "score and snap" method, which wouldn't work for the amount of square footage I need to cover).The blade slices through the board quickly and with little dust. If you don't know, the blade comes with 2 removable brass rings at its center, to fit different size arbors.Remove as necessary. Highly recommend the blade.I was hesitant to spend so much on one blade and fortunately I read a few recent reviews and purchased one. I would purchase and will buy another when needed. I used to cut ant trim around 200 pavers, and went on to cut mortar and brick around my house. Better than anticipated and still cuts as good as the first cut.I have used this to cut multiple 8: and 4: solid cinder blocks. I use a water house to keep a steady flow of water on the blade it it works great. I have no problems with it. It is giving me smooth clean cuts. Definitely worth the money.Purchased to use on my old circular saw. I used this 6" blade on an old Sunbeam circular saw that uses a 6.5" blade. It worked great and cut with no problems. The cheap $4 blades for masonry would not cut these 1.25" thick bricks. This did the job fine, and I will use it for other jobs around the house.Cut quartz countertops with ease using my m18 saw. Sprayed water on blade and cutting surface with a yard sprayer and that kept the dust down and blade cool.