PART NO. A-B1JD6014. BLADE-MOWER, XHT, 17", 13/32". 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.   (Requires 3) blades for 48" cut. Scotts/Sabre & Deere L and 100 series. C to C 3-3/4" Center Hole 11/16" Length 17" Outer Hole 13/32" Thickness .156 Width 2-1/2". MODELS: John Deere (Undefined): SEVERAL (48"),John Deere RIDING MOWER: L120 (48"),John Deere RIDING MOWER: L130 (48")