most of those light shredders such as howse an modern might hold up to just cutting grass.but if you do any brush shredding with them they will swarm.youd be better off looking for a clean used bushhog,that will pretty much shredd anything your tractor is big enough todo.
Take a look at modern ag out of Texas the have several models the decks are thicker 3/16" and you can even get some hot dipped galvanized with a ten year rust warranty all for under 1500
I am having a dealer bring one in for me. They sure look stout to me but have only seen them on Internet they have been around since 60's. Made in USA putting people to work. All good things check them out.