Standard Duo-Grip Tractor Chains – 520-70-38 Maximum Traction for Deep Tread Farm Tires - Designed to fit tire size: 520-70-38 - Standard Duo-Grip Tractor Chains ideal for general farm use and deep tread traction - Cross-chains ride high and do not fall into deep tread grooves - Reduces side-slip while maintaining consistent forward motion - Built for farm tractors, loaders, and off-road equipment - Durable, long-wearing construction for demanding environments Standard Duo-Grip Tractor Chains are engineered for superior traction on farm tractors equipped with deep tread tires. The elevated cross-chain design keeps the links from dropping into tread voids—ensuring maximum contact with the ground. This configuration excels in off-road agricultural use, including muddy fields, soft soil, and frozen terrain. The V-Bar or round twisted links provide dependable grip under torque-heavy conditions. By maintaining chain height across the tread lugs, these chains reduce slippage and promote efficient power transfer during plowing, tilling, or hauling operations. Each set is ruggedly built to stand up to long hours of operation and adverse field conditions, season after season. Choose Standard Duo-Grip Tractor Chains for dependable traction and long-term value in your farm operations.