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What is the main property which makes drilling bits and saw blades useful?
Wiki User
∙ 13y ago
The cutting surface must be harder than the material that it will be cutting. That can mean that the teeth of a sawblade might be made from carbide steel, coated with diamond dust or that a drill bit may be made from tungsten carbide, which are both stronger than steel alone. Reducing the heat from friction while cutting by using some fluid medium usually extends the cutting life of whatever is being used.
Wiki User
∙ 13y ago
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What property makes semi-metals useful as switches to turn a small electric current on and off?
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any property
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Amphipathic Nature
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I have absoulutly no idea! I want to know, though!
What property of radioactive elements makes them useful for fetermining absolute age?
How should I know you idiot!
