Changing a drill bit on a Dremel is a simple process that involves loosening the collet, swapping the bit, and then tightening the collet again.
Here's a step-by-step guide:
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Loosen the Collet: Most Dremels have a collet locking nut located near the tip. Use the included wrench (spanner) to loosen this nut. You typically only need to loosen it enough to allow the bit to move freely. Some Dremel models have a spindle lock button. Press and hold the spindle lock button while loosening the collet nut.
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Remove the Old Bit: Once the collet nut is loose, the old drill bit should slide out easily. If it's stuck, gently wiggle it while pulling.
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Insert the New Bit: Insert the shank of the new drill bit fully into the collet. Make sure it's seated properly.
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Tighten the Collet: While holding the new bit in place, tighten the collet nut using the wrench. Tighten it securely, but don't overtighten, as this could damage the collet or the bit. If your Dremel has a spindle lock button, press and hold it while tightening the collet nut. Tighten fingertight first, then use the wrench for a final tightening.
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Test the Bit: Before starting your project, briefly run the Dremel to ensure the bit is secure and spinning properly.
