1 1 8 INCH X 57.6 INCH SQUARE AXLE 873 DB4130 The Calibration Calculator is marked 868 SMA549979 The Calibration Calculator is marked with a series of scales which enables a sprayer operator to calibrate or establish the following parameters of sprayer operation: Interchange 771538 50 Brand AgSmart Make Type Model Case IH Disc Harrow 350 Case IH Disc Harrow 370 Case IH Disc Harrow 485 Case IH Disc Harrow 496 Case IH Disc Harrow 760 International Harvester Chisel Plow 55 International Harvester Disc Harrow 130 International Harvester Disc Harrow 132 International Harvester Disc Harrow 330 International Harvester Disc Harrow 37 International Harvester Disc Harrow 48 International Harvester Disc Harrow 480 International Harvester Plow 60 International Harvester Plow 6000 50 Height 1