REPLACEMENT XHT BLADES Extreme Hardness Toughness USA MADE! The XHT blades are made with MARBAIN which is what makes them THE BEST BLADE ON THE MARKET! Increased hardness (between 48-52 on the Rockwell Hardness Scale), without brittleness Greater yield strengthÂthe strongest mower blades on the market Better impact toughness (ANSI-S483 compliant) Increased resistance to bending Higher wear resistance Reduced weight Faster start/stop Less wear on PTO clutch break Lower fuel consumption Last longer and need to be sharpened less frequently Our patented MARBAIN material is a durable, cost-effective alternative to abrasion resistant steel and other manufacturing materials This sale is for 3 replacement XHT blades. Replaces the following OEM part numbers: CUB CADET/MTD 02005017 1005336 94204417 3 Needed on the 48" cut models! Center Hole: 3/4" Width: 3" Thickness: .197" Length: 17" Please make sure you are ordering the correct blades. We list model numbers, part number and the exact dimensions so you know exactly what you are getting. Just because the model number is not listed does not mean it doesn't fit but are because it is listed to mean it does. There are serial number breaks and other factors that sometimes change needed blades.