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Why do you think some saw blades and drill bits are coated with diamond ?

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because diamond is the hardest stone known to man and cant be scratched unless by another diamond so it can easily cut through anything

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Because its the hardest substance know to man, you don't want the saw to be the one being cut, so make it stronger!

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It is because diamond is the hardest material on the earth and thus, making the strongest saw blades and drills. Diamond also has good wear resistance, high strength, and low friction coefficient. To get more details about this, visit http://en.wikipedia.org/wiki/Diamond_tool.

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Those are man made diamonds. That are used to penetrate and cut material that's less dense then the man made diamonds. pretty much any surface rock and man made materials

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Because diamonds can cut through almost anything and are very durable.

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Diamond is very strong and durable

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Lowheadroom

Diamond coated blades and bits are made to cut through brick, concrete, tile and other hard material, usually using water to keep the blade from overheating

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Carpenters and such prefer a little "bling" on their tools.

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Haha that's wack
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