OK. Yes they look like pretty much standard inserts. They do make many sharp edge inserts for alum. and plastics and even titanium. The duller edge chip breaker inserts are for harder materials mostly. Thanks Ross for trying to get me more stuff to do

but I got too much on plate so I think I will pass at this time, but I can look into the inserts as I told Saltheart and probably save you some money on those if you do decide to buy the holders and wear out the inserts.. There are lots of people, companies, making those holders. I think Lou even made a couple a few years ago. Those are really expensive though, I will say that Ross. Got to be some cheaper Chinese ones out there I'd think.
Mike I will be sending that holder out early this week. Thanks. P.