33SL - Ultra low-kickback chisel chain for both professional and consumer users Provides high cutting speed from 2.5 to 3.5 inches Efficient, smooth cutting Excellent, stay-sharp 72SG - Semi-chisel cutter provides cutting efficiency and performance indirty or rocky conditions No interference with chip clearance or flow Standard 72 series chain chassis Reduces kickback and allows 3.0 to 6.0 cubic inches cutting speed 3/8 pitch 0.375 LOW PROFILE EXTRA GUARD Roll Lgth. Ft.=25