One makes use of a chuck key to lock the chuck and the 2nd is a keyless chuck. Hold the bit with your non-dominant hand as well as grasp the chuck with your dominant hand. Revolve it clockwise until it's tight and your drill little bit does not wobble. Your drill little bit might come out on its own when you loosen up the chuck manually or utilizing your drill, so make certain to persuade a surface area, like a table, to capture the little bit.

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