6″ x 6″ Insert Surfacing Head — 4-Wing, Hydro-Lock Bore

The IN660H is the hydro-lock version of the 6 in. four-wing surfacing head with a 6 in. cutting length for wide single-pass work on large production moulders and planers. Its hydraulic hydro-lock bore grips the spindle evenly around the circumference, centering the head to very low runout and allowing fast, repeatable mounting and removal — valuable on a wide, heavy head that would otherwise be slow to seat true. The aircraft-aluminum body keeps weight, noise, and horsepower demand down, and four wings hold four-sided solid carbide inserts in a staggered spiral pattern that shears cleanly across the full width, with 20 effective cutting teeth and open chip clearance for heavier removal. Inserts rotate to fresh edges or replace on or off the machine — no grinding, no regrinds. The precise hydro-lock mount helps the head hold its finish under production feed. Specify bore size when ordering.