A&I XHT 21", 3/4", HL Mower Blade (Set of 6) - B1CC1418,6 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 60" cut. Fits M60 Tank models. Center Hole 3/4" Length 21" Thickness .197 Type High Lift Width 3" Crossed From: BL-071 J. THOMAS BL071 J. THOMAS CC0363 MOW MORE LE-388 J. THOMAS LE388 J. THOMAS 01005338 MTD/ CUB CADET/ WHITE 01005338P MTD/ CUB CADET/ WHITE 02005019 MTD/ CUB CADET/ WHITE 02005019-X MTD/ CUB CADET/ WHITE 02005019X MTD/ CUB CADET/ WHITE 1005338 MTD/ CUB CADET/ WHITE 10363 ROTARY 2005019MTD/ CUB CADET/ WHITE 350-098 STENS 350098 STENS 50-3046 WINDSOR 503046 WINDSOR 705338 LESCO 742-04415 MTD/ CUB CADET/ WHITE 742-04415-X MTD/ CUB CADET/ WHITE 742-04415-XG MTD/ CUB CADET/ WHITE 74204415 MTD/ CUB CADET/ WHITE 74204415X MTD/ CUB CADET/ WHITE 74204415XG MTD/ CUB CADET/ WHITE 942-04415 MTD/ CUB CADET/ WHITE 942-04415-X MTD/ CUB CADET/ WHITE 94204415 MTD/ CUB CADET/ WHITE 94204415X MTD/ CUB CADET/ WHITE 98-071 OREGON 98071 OREGON This is an aftermarket product, not an OEM. A physical address must be provided, NO P.O. BOXES. Thanks for looking!