milling 45 degree angle bender brake top die

What cutter would yall suggest to cut 1018 I was thinking a 1/2 4 flute roughing bit then a regular 1/2 4 flute to finish was wondering if it would be worth it to get a 3/4 roughing endmill ????

When I did mine I used a 1/2" rougher then finished it with a 1/2" end mill. Can't remember if it was a 2 or 4 flute.

Tom S.
 
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