1.Helical Cutterhead is designed to replace the straight-knife cutter head on the Model G0857 8" x 76" Jointer.
2.Helical cutter heads provide a superior finish, better dust collection, and quieter operation as compared to straight-knife cutterheads.
3.Each indexable carbide insert can be rotated up to three times to expose a new sharp edge. You will no longer have to worry about changing and resetting knives every time a blade gets dull.
4.The indexable carbide inserts are positioned along a helical pattern with the cutting edges at a slight angle to the workpiece for a shearing action that leaves a glassy smooth cut even on the toughest of woods.