6″ x 12″ Insert Surfacing Head — 6-Wing, Straight Bore

The IN665 is the widest surfacing head in the range — a 6 in. diameter with a 12 in. cutting length that faces full-width panels and wide boards in a single pass on large production moulders and planers. The aircraft-aluminum body is what makes a head this long practical, keeping weight, noise, and horsepower draw manageable. Six wings hold four-sided solid carbide inserts staggered in a spiral across the entire 12 in. length, shearing the grain for a line-free surface with 75 effective cutting teeth; the dense six-wing spacing keeps each insert’s bite light, which is what holds finish quality across such a wide cut at production feed. Inserts index to fresh edges or replace on or off the machine — no grinding, no knives sent out. A constant cutting diameter keeps setup minimal as inserts rotate. Specify bore size when ordering; also offered with a hydro-lock bore as IN665H.