The International 55 is a 3 rank mounted chisel plow designed with three 4x4 box section beams and tubular steel cross members. It's teamed up with patented spring cushion clamps and tough alloy steel shanks that have a wide selection of chisel tip options to work the toughest ground with aggressive action and uniform penetration. This 55 chisel plow is avaliable in a 13 foot width that can be extended to 15 and 17 feet to match your tractor's power. Price start: 10000 $ Max. working speed: 7 mph Required power: 130-170 hp Working width: 13-17 ft