The 320 and 426 delimbers are designed for maximum productivity, reliability, and component life and help you get the job done quickly and efficiently. Choose the 320 with its three-knife design and 31-inch throat opening for small to medium softwoods and small hardwoods. Or step up to the 426 with its four-knife design and 34 3/8-inch throat opening for larger wood sizes and multiple stem thinning applications.