Can I replace 2.5-mm/40-degree knives with 3-mm/45-degree ones?
Unless something has recently changed, I don't think they can. I have
spoken with and E-Mailed them. They didn't have any more blades, but
were going to have some made. I had some other parts I needed, but
they didn't get back to me. I've kinda given up on Eagle.
Do a google search for Eagle tools down in southern CA, they can get
you OEM knives from stock.