Oregon 91-003 Lawn Mower Blade Fits Ariens 03027800 03027851 03027859 03123700 DESCRIPTION The Oregon 91-003 Lawn Mower Replacement Blade is manufactured to precise OEM specifications for optimum performance. Our blades are individually straightened and hardened to provide a consistent, clean cut and extend blade life. MORE DETAILS Center Hole: 3/4″ Requires 3 blades to cut 48″ Superior mulching for bagging and throwing efficiency Extra hardened to keep the blade sharper and longer lasting Fits GT Deck 831031 Replaces major brands: Ariens and Gravely SPECIFICATIONS Color Black Volume 256.767 in3 Product Unit Each Weight (with packaging) 2.26 lbs Product Height 0.203 Product Length 16-9/16″ Product Width 2.5 Blade Width 2.50″ Blade Thickness 0.203″ Blade Length 16-9/16″ Center Hole Size 3/4″ Offset 7/16″ Air Lift 7/8″