"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, Hitch Type 3-pt., Product Type Harrows, Working Depth in. 9, Working Width in. 91, Blades qty. 20, Flanges qty. 8, Blade Type Notched and smooth, Category Type 1, Blade Size in. 18, Max. HP 40. Sealed bearings and powder-coat finish for durability"