Thanks, I picked these up in a parts lot a few years back. I've used them and they work great. Keeping some for my x heads and intake work. More than I'll ever need or use and I'm tired of tripping over stuff lol. I may buy/trade for tapered ones if anyone has some?
Steve, these are also available in a tapered form and are great for polishing aluminum intakes and as you stated porting. They are well worth the money for anyone wanting to do a professional job.
