SCAG High lift blades , set of 15 blades for 61 decks , replaces part numbers 482879 and 482881 , these blades are made of Marbaine hardened steel. Many other sizes of Scag blades available. Replacement XHT Lawnmower blade. XHT(Xtreme Hardness & Toughness) blades are 25-40% harder than standard lawnmower blades. Benefits of the XHT blade are sharper and longer lasting cutting edges. More resistance to bending. Tighter tolerances in the aftermarket vs. XHT blades also offer greater impact toughness. (3) blades for 61 cut. Newer style blade w/ longer air lift. Medium Lift – Notched (High Lift Scag Equivalent). Cherry Valley Landscape Center. The item “15PK Marbain Steel Hi Lift Mower Blades for Scag 61 482879 & 482881 USA MADE” is in sale since Monday, August 29, 2016. This item is in the category “Home & Garden\Yard, Garden & Outdoor Living\Lawn Mowers, Parts & Accessories\Lawn Mower Parts”. The seller is “mowerparts7711″ and is located in Rockford, Illinois. This item can be shipped to United States.