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