The proper name is Jacobs Rubber-Flex. I have talked to Jacobs in the last year and they had one engineer there yet that knew about them. They made two sizes, one went to 1 3/8" diameter and the other went to 1" diameter (much rarer). They have not made either for years and years but show up on Ebay quite regularly. I have the larger chuck which I would sell, it would need an adaptor to go onto your machine. I don't have collets. |