Bought with the intention of using it on a stainless steel threaded rod but it didn't work. In fact, no material was removed. All he did was crush the material and destroy the carving. Don't buy stainless steel! I also asked the company for a comment before posting this and received no response. I received a separate email saying "Please review and contact if there are any problems" so I replied to that (still no response from the company) and posting a review as requested.