Thursday, July 10, 2008

Masonry bit

As the name suggests, these are designed for drilling into brick, block, stone, quarry tiles or concrete. The cutting tip is made from tungsten carbide bonded to a spiralled steel shaft. Most masonry bits can be used with a hammer action power drill, but always check as the action is quite punishing on the bit and cheaper bits have been known to shatter when subjected to the pounding. Always use a slow rotational speed for drilling into harder materials to avoid overheating of the tip, and frequently withdraw the bit to remove dust.

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