This is a benchtop planishing hammer. The specs are as follows. 30"x30" overall, 25" throat, 0- 4000bpm powerhead with infinite speed adjustment capable of forming, planishing and metalshaping 16g cold rolled steel (crs),20g stainless steel and 1/8" aluminum, rectangular heavy wall structural tubing frame gusseted for added strength, heavy duty mounting feet, 1"x5" Acme machine, rod for height adjustment with 6" cast iron handwheel, 5 heat treated tool steel dies, 1 top and 4 lower, flat, low, medium and high radius