I have found items like this on Amazon https://www.amazon.com/AEVO-Electric-Upgraded-Manicure-Changeable/dp/B087JBKDDT/ref=sr_1_15?dchild=1&keywords=nail+polisher&qid=1627156949&sr=8-15 , much better at slow speeds, it has a forward and reverse option. The only draw back, is the shaft size of the bits, they are 3/32 as opposed to 1/8 and I think that you are inserting the bit into a rubber sleeve not a colette as on a dremel. But all in all, it works great on plastic. YOu can also find ceramic bits that will hold up for a very long time and are easy to clean, all you need to do is look a little outside the hobbu box, and look to nail polishing tools for some great options.