Oregon 40-409 Edger Blade, 10" Sharpened on 4 sInner diameteres, straight cut edge Resists bending, breaking and fracturing Heat treated for maximum durability and life Major brand replacement: Little Wonder Fits Models: 5001, 5002, 6001, 6002, 6031, 6032, 6001IC, 6001K, 6002IC, 6002K, 6031IC, 6031K, 6032IC, 6032K, 6033