These Blades Replace the Bush Hog Part Number 463They Will Also Fit on the Howse/HICO 6ft Model cutters- Howse Part # HL422NHBe sure to Look at Measuremnts and See if it WorksOverall Lenght 27-3/4"Center of Hole to Cutting Tip 25-1/2"Blade Thickness 1/2"Blade Width 3-1/2"Hole Size 1-1/2"Weight 12lb Each BladeCCW Rotation2" of OffsetHere is some of the bushhog model numbers this blade fits. Heavy duty bush hog models 206,306,307. Howse or HICO 601S, MH6, 6100, 6000, 6102T4, 602S, 600 and more.We carry a wide range of agriculture parts. On rotary cutters we have pto shafts, stump jumpers, blade bolt kits, gearboxes and more.