medium-duty 20-blade 6' tillage disc more details mdd6 quick-hitch powder coated tough compatible description item # mdd6 height width length middle buster subsoiler quick-hitch quick-hitch powder coated tough powder coated tough compatible sub compatible up potatoes not to exceed 35 hp rated tractors 15" double-wing cutting blade for single rows cuts through even compacted soil with ease water accumulates water will drain easily with one pass not to exceed 35 hp rated tractors usable depth of 22" description middle buster item # height weight width blade width blade length description subsoiler item # sub approx height weight width length usable depth tarter farm & ranch product guide