"This harrow is perfect for breaking ground in gardens or small acreage farms. The heavy-duty welded angle iron frame holds 18in. notched and smooth disks that adjust for more aggressive dirt movement. Notched disks break hard ground better while smooth disks provide better tillage. U.S.A. Required HP 25, Working Width in. 91, Blade Size in. 18, Working Depth in. 9, Product Type Harrows, Blades qty. 20, Flanges qty. 8, Blade Type Notched and smooth, Category Type 1, Hitch Type 3-pt., Max. HP 40. Sealed bearings and powder-coat finish for durability"