My Girlfriend and myself were out antique shop browsing. I happened to find a Irwin No. 2 expansion bit in its box. It has the wrong spar cutter and is missing the large cutter the one that is on the bit will go out to 2 inches so I'm not to worried about it. found another on eBay in box w/large cutter and no spar cutter for $40. I'm thinking I got a pretty good deal for it at $15.
P.S. If you have any questions feel free to ask.