I use Cat 1 impliments, 5' blade, 4'box blade, 4' tiller, Post Hole Digger with 9" auger. TSC sells the King Kutter line of impliments and they also carry the KK XB line that they market toward the Sub Compacts but the same size impliments are smaller scale, but more money, go figure. I haven't seen a need to use anything but Cat 1 tools on my BX 2200.