
This may or may not be useful, but come on. I bought these to bevel the edges of my concrete countertop molds with silicone caulk. I found this in a YouTube video as a kind of hack to get rounded edges on the corners of a tabletop. These tools worked great and allowed me to accurately size the rounded edge. I've used them all - and I must add, pretty roughly. They perfectly withstood 3 separate concrete mold models. They were easy to clean. If I can easily wipe off the black silicone sealer you can probably scrape whatever they're normally supposed to shape :-) So while I didn't end up with a nicely decorated birthday cake, you should be able to see the countertops on my outdoor grill. the island. Pretty impressive!

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