History of grinding
Did you know that grinders were first used as far back as 4,000 years ago? Our ancestors ground holes in stone axes and hammers. In ancient Greece, techniques for cooling grinding stones with oil or water were used.
One major leap in grinding technology came in the 15th century with courtesy of Leonardo da Vinci. He invented a needle grinder with automatic loading and unloading of the needles. It took until 1874: in that year Brown & Sharpe marketed the world's first cylindrical grinding machine. Workpieces could then be manufactured with a precision of up to 0.01mm (0.0004").
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