A&I XHT 18", 5/8", HL Mower Blade (Set of 4) - B1BC1205,4 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. (2) blades for 36" cut. (3) blades for 54" cut. Fits XM series. Center Hole 5/8" Length 18" Thickness .250 Type High Lift - Notched Width 2-1/2" Crossed From: A48185 SCAG A-BC18 MOW MORE BC18A MOW MORE BO-0102 J. THOMAS BO-17A J. THOMAS BO0102 J. THOMAS BO17A J. THOMAS D18037 GREAT DANE GDU10231 ARIENS / GRAVELY GDU10231 GREAT DANE PL4206 BUNTON TCU37208 JOHN DEERE WM132022 BOBCAT 00878200 ARIENS / GRAVELY 038-5202-00 BAD BOY 038300000 BAD BOY 038520200 BAD BOY 04917900 ARIENS / GRAVELY 050241 LESCO 1-303146 EXMARK 1-303283 EXMARK 1-303527 EXMARK 1-7037 SNAPPER 1-7037 YAZOO/ KEES 1-7344 SNAPPER 100341 HUSQVARNA 100341 SNAPPER 100341 YAZOO/ KEES 1010 ROTARY 101485 HUSQVARNA 101485 SNAPPER 101485 YAZOO/ KEES 103-6582-S EXMARK 103-6584 EXMARK 103-6584-S EXMARK 1036582S EXMARK 1036584 EXMARK 1036584S EXMARK 11211-02 BOBCAT 1121102 BOBCAT 112111-02 BOBCAT 112111-02 RANSOMES 11211102 BOBCAT 11211102 RANSOMES 12111-02 BOBCAT 12111-02 LESCO 12111-02 SNAPPER 1211102 BOBCAT 1211102 LESCO 1211102 SNAPPER 1303146 EXMARK 1303283 EXMARK 1303527 EXMARK 13826 LESCO 17037 SNAPPER 17037 YAZOO/ KEES 17344 SNAPPER 2722543-02 BOBCAT 272254302 BOBCAT 301-015 STENS 93-003 OREGON 93-010 OREGON 93003 OREGON 93010 OREGON 99-128 OREGON 99128 OREGON 7-6450 SNAPPER 7-7344 SNAPPER 7-73447 SNAPPER 7017037 SNAPPER 704615 PRIME LINE 704616 PRIME LINE 704617 PRIME LINE 704619 PRIME LINE 704764 PRIME LINE 704768 PRIME LINE 704960 PRIME LINE 706388 PRIME LINE 706425 PRIME LINE 0125 LESCO 50140 LESCO 502205 WINDSOR This is an aftermarket product, not an OEM. A physical address must be provided, NO P.O. BOXES. Thanks for looking!