Reply To: Face mill

[John ReeseParticipant @johnreese12848]

Round or triangular cutters will have near zero rake on the cutting face. APMT, APKT inserts have a positive rake molded into the insert and will have reduced cutting forced. I have two insert cutters, 2" diameter with APKT inserts and 3" diameter with SEKT inserts. The SEKT has high positive rake and takes less horsepower and feed pressure than the APKT. Downside of the SEKT insert is the 45 degree lead angle.