BFreud C600 10-Inch Replacement Planer Knives for Ryobi AP10 (2-Pack) ReviewbP PP Freud C600 10-Inch Replacement Planer Knives for Ryobi AP10 (2-Pack) PProduces the smoothest cutPPrecision-machined for best results; pre-ground to a razor sharp edgePMade from premium high-speed steel stockP2-pack of planer knivesPManufacturer's limited lifetime warrantyP