A&I XHT 16-1/2", 3/4" Mower Blade (Set of 6) - B1CC1401,6 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 48" cut. Fits model GT2000 and Pro midsize walk-behinds. C to C 2-1/2" Center Hole 3/4" Length 16-1/2" Outer Hole 5/16" Thickness .197 Type Medium Lift Width 2-1/2" Crossed From: CC16A MOW MORE OCC-742-3019 MTD/ CUB CADET/ WHITE OCC7423019 MTD/ CUB CADET/ WHITE 01002072 MTD/ CUB CADET/ WHITE 325-746 STENS 325-841 STENS 325746 STENS 325841 STENS 50-4185 WINDSOR 504185 WINDSOR 6240 ROTARY 7-06331 PRIME LINE 706331 PRIME LINE 742-3019 MTD/ CUB CADET/ WHITE 742-3025 MTD/ CUB CADET/ WHITE 7423019 MTD/ CUB CADET/ WHITE 7423025 MTD/ CUB CADET/ WHITE 759-3825 MTD/ CUB CADET/ WHITE 759-3826 MTD/ CUB CADET/ WHITE 7593825 MTD/ CUB CADET/ WHITE 7593826 MTD/ CUB CADET/ WHITE 91-056 OREGON 91-333 OREGON 91056 OREGON 91333 OREGON 91593 LASER SALES 91715 LASER SALES This is an aftermarket product, not an OEM. A physical address must be provided, NO P.O. BOXES. Thanks for looking!