"This Oregon saw chain is a high performance product designed for professional users. Length ft. 100, Chain Pitch in. 3/8, Chain Gauge in. 0.063, Chain Type 75LGX. High performance chains are designed for professional users Top performing square corner 'chisel' cutters sever wood fibers in a single pass Upgraded cutter grind results in significantly enhanced out-of-box sharpness Corrosion-resistant chains include bumper drive links to reduce kickback and vibration"