REPLACEMENT USA MADE XHT BLADES! Replacement XHT Lawnmower blade. XHT(Xtreme Hardness & Toughness) blades are 25-40% harder than standard lawnmower blades. Benefits of the HXT blade are sharper and longer lasting cutting edges. More resistance to bending. Tighter tolerances in the aftermarket vs. OEM. XHT blades also offer greater impact toughness. MADE IN THE USA!! Not cheap imports!!! Hands down the ABSOLUTE best aftermarket replacement blade on the market! Replaces the following OEM part numbers: COUNTRY CLIPPER H-1714 91-123 Center Hole: 1/2" Width: 2-1/2" Length: 16-15/16" Thickness: .218" 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.