... we can provide both bottom knife and fly knife for you. chipper knife chipper bladeAccording to different size ... we can provide you different accessories, including knife, bottom knife, fly knife, gearbox, sieve and so on.Here is ... size of all chipper rotor knives:type(rotor knife)sizeBX218780*220*20BX218780*100*20BX216600*185*20BX216600* ... 10BX218D220*850*20BX218D100*850*20 chipper knife chipper blade