A&I XHT 24", 5/8" Mower Blade (Single) - B1DC1510,1 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. (3) blades for 72" cut. Fits models XXW 2500 and XXW 4000 series. Center Hole 5/8" Length 24" Thickness .250 Type Medium Lift Width 2-1/2" Crossed From: BL-120 J. THOMAS BL120 J. THOMAS DC6404 MOW MORE DX-6841 J. THOMAS DX6841 J. THOMAS UDCH8 GREEN MEADOW 038-7202-00 BAD BOY 038720200 BAD BOY 15-6404 ROTARY 151530 EDGE WATER 156404 ROTARY A-20-0316 LANDSCAPER EXPRESS 20-0802 LANDSCAPER EXPRESS 20-1492 LANDSCAPER EXPRESS 200316 LANDSCAPER EXPRESS 200802 LANDSCAPER EXPRESS 201492 LANDSCAPER EXPRESS 227-72H DIXIE CHOPPER 22772H DIXIE CHOPPER 30227-72H DIXIE CHOPPER 30227-72N DIXIE CHOPPER 3022772H DIXIE CHOPPER 3022772N DIXIE CHOPPER 315-254 STENS 315254 STENS 34305 GREENLINE 34377 GREENLINE 50-4005 DEALERS CHOICE 504005 DEALERS CHOICE 6404 ROTARY 7-04570 PRIME LINE 704570 PRIME LINE 91-507 OREGON 91507 OREGON 91896 LASER SALES This is an aftermarket product, not an OEM. A physical address must be provided, NO P.O. BOXES. Thanks for looking!