Allen Mighty Mac 506 Chipper Shredder, powered by a 6hp Briggs and Stratton engine. This machine makes light work of garden waste and is capable of chipping timber of 2 7/8 inches in dia. The machine has transport wheels to take it where needed in the garden. There is a large hopper for waste up to about 3/4 of an inch in dia and a chute for the larger timber.