John Deere-style premium aftermarket bolt-on cutting-edge segment. Part reference T226229. Application/reference: Segment Edge Protection JD 644 / 724. Replaceable segment that protects the base edge and maintains a continuous working surface. Mounting: 1-in plow bolt; confirm bolt length and the exact hole pattern before installation. Brand reference: John Deere. PETRAX premium aftermarket replacement; OEM names and part numbers are used for identification only. This item fits only the specified system and matching mounting dimensions.