Problems with a Koil Kutter

[ani_b]

I finally received my Koil Kutter from Dave, but the rings are coming out with little nics in them.

I've mailed Dave but I thought I just check to see if anyone else has had this issue and what can I do to resolve the problem.

I'm using a Proxxon to cut them and have changed the blade but it's still doing the same thing.

I attached a photo showing what the problem is.

Thanks
Ani