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The shipping was free, and the price is great. They were sent from California, and arrived east of the Mississippi in four days. I really like these cutting discs; they cut hard materials. HobbyToolSupply is an excellent seller. I ordered these on a Monday, and received them on Friday.
Definitely a bargain price. Comes with a mandrell and 5 wheels. This set has a very fine grit.Stated max RPM is 1500, and formally require lubrication with water or oil (otherwise it can overheat, warp, crack, and otherwise send spinning pain death nastiness at your face).These make a nice, smooth groove or cut.
For me, these wheels basically dont cut, but they do a great job of grinding. On plastic, they melt the plastic more than cutting it (which, in the end, does work).
after cutting metal or plastic with the demel cut-off wheel, these wheels do a great job at grinding the edges smooth or grinding away additional material.Sooo. I have found the dremel cut-off wheel to be much more effective.
My experience is rather different than the other reviewers - I dont know why. They have failed to cut aluminum, steel, and stainless steel, plate and screws.
I give them 3 stars because they are good for grinding, but I wanted them for cutting. I have found that the grit is only on the faces, not the edges.
I have tried to use them to cut metal and plastic.
It is essential to keep the cut lubricated and cooled (I used water). I purchased these to cut an opening in a glass block (the kind used to make decorative walls). A good product at a great price. In total I made almost 2 linear feet of cut and wore out one of the five wheels. Glass was almost 3/8" thick so I was not expecting the cuts to be easy. These cutting wheels made the job easy.
Save your money and buy these cheap import blades they are just as good as the Dremel brand in my opinion. I have cut many tubes and am still on the first wheel. I bought these to cut Pyrex/glass test tubes. They work great and last a long time.
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