11H Harvester Chain ( semi-chisel) The 21st-century chain that is the secret to long life in the harsh world of mechanical timber harvesting. FEATURES * Semi-chisel cutters make 11H an aggressive, high-performance chain * Advanced chassis design helps reduce weight, dynamic loading, and wear while maintaining superior strength * Patented OREGON® steel material and state-of-the-art manufacturing processes keep stretch and wear to a minimum, even while working in brutal cold-weather cutting conditions SPECIFICATION 11H ; 3/ 4" pitch; .122" gauge