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I expected his finger to be bleeding after he picked it up. I'm wondering if it's just a property of the diamond saw, or he likes to live dangerously.

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Having a cut a ton of stuff with diamond saws, the edge they leave is very abraded, and rarely sharp.

This is not surprising, since it's basically like cutting it with 60-180 grit sandpaper

You're probably right that the edge isn't so sharp, though I note that his finger was higher above it than it looked, but I wouldn't underestimate glass splinters.

Those really suck.

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