HELIDO UPFEED H600 LINE - Moderate feed face mills carrying double-sided inserts with 6 cutting edges which can be applied at up to .138" depth of cut. High metal removal rate when combining high depth of cut with moderate feed. Most advantageous for machines with a limited table feed or heavy workpiece. Double-Sided Inserts, 6 Cutting Edges, for Fast Feed. Used for alloy steel and cast iron. Strong, dovetailed insert clamping.