Insert used: RPMX1204MO-H NK135 Face mill mounted on ISO40 holder also from APT, type DIN2080 40-FMB22-45.
DofCut: 1.5mm Width of cut: ~50mm Spindle speed: 290rpm Feed:225mm/min No cutting fluid, light breeze of compressed air only...to keep the scaling dust away.
Squared up 6 pcs. of c45 steel blocks 120x50x80mm 36 sides all together.... which will soon be new tool holders for my lathe. Result: Almost mirror finish!!