Sorry. I don't know the answer to your question. Have you contacted 3
rivers? They're very helpful. If you get in a jam, try the less
expensive, plastic disposable model. I find it works better than the
tru-center taper tool, whose blades need adjusting and replacement. I
figure I'll just use it till I can't, then throw it away.
Answered on 4/20/2013
Batture Bowman from Jefferson, LA