How to disassemble pinned sprockets from a freewheel I have a shimano freewheel like this one

Picture taken from Cassette Removal &amp; Installation
I need to use separate sprockets from it but I'm not sure how to extract them without causing any damage. I got the urge to just drill through those pins but I thought I'd rather ask first before the damage is done.
How do you take apart the sprockets?
How do you take apart the sprockets?

This is not a freeweel but rather a cassette.
By removing the pins, by drilling or angle-grinding them away. This won't cause any damage. You will have your cassette, but with loose sprockets and spacers.
However, do note the sprockets are matched to the neighboring ones in Shimano hyperglide (HG) cassettes. If you customize your cassette, then the matching doesn't work anymore and your shifting suffers. It is not a fatal deficiency, because bicycles were ridden for decades without neighbor-matched side-cut sprockets.