Hi I am working on milling some foam, about 130mm deep.

The longest cutter I have is about 120mm in total. Can anyone recommend a good cutter for foam, prefferably something around 20mm in diameter.

So far the only cutter I can find long enough is this carbide insert cutter from APT but im not sure how well the carbide inserts will cut foam.

BAP300R-16-200-C16 End Mill for APMT 1135 Inserts 16mm dia 16mm shank 200mm long Associated Production Tools