These small sanding disks works better than expected, They work well and the disk last / sticks just as expected. Good for sanding pretty much anything quickly gets rid of nub marks and uneven areas. Also, need to make sure you’re using a low power electric sander and not a high power dremel, otherwise you’d just blow through the sanding material and even melt the plastic a little.

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This would be good if the roughness didn't disappear after a few moments or if they stuck to the tool as well. Helpful for some tight spots but marginally helpful.

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