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Diamonds on Demand

Sitting in the reclining chair during my last visit to dentist, I stared very intently at the drill that the dentist was about to use in my mouth. I started tensing up as I anticipated the high pitched shrill sound that would accompany the grinding of the dental drill against my teeth. I remembered that those drills could be made out steel with a tungsten carbide coat, or even worse, a diamonds coating.