A fast and accurate way to adjust a 4 Jaw independent chuck. This method takes all the guesswork out of where/how/when to adjust the individual jaws. A foolproof method of fast adjustment that will make your 4 Jaw Chuck more useful and take the 'fear factor' out of using it. As with any shop procedure, please be sure to wear appropriate Safety Gear (Goggles, Safety Glasses, Dust Masks etc.)

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