There should be a shaft lock button near the tip end of the tool and you need a small spanner wrench (included with the tool) that inserts into the collet sleeve hole and is turned CCW (looking at the tool end) to loosen the collet itself. Tap on the tool end lightly to help loosen the bit. Hope this helps!
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There should be a shaft lock button near the tip end of the tool and you need a small spanner wrench (included with the tool) that inserts into the collet sleeve hole and is turned CCW (looking at the tool end) to loosen the collet itself. Tap on the tool end lightly to help loosen the bit. Hope this helps!