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A muffler that concentrates on suppressing sound waves vibrating 200 to
2,000 times a second--the loudest and most objectionable ones created by
rock drills. Because the muffler bypasses the lower frequencies, it does
not interfere with the column of air that makes a pneumatic drill
function.
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About Us DeveloDex™ OptiMall™ Success Tools Tabularium™ WebRef™
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