XHT 22", 5/8", RHC Mower Blade - B1WA3401 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. (1) B1WA3400 and (1) B1WA3401 for 42" cut. (3) blades for 54" cut. Grass handling system. Rear discharge. Right hand cut. C to C 3" Center Hole 5/8" Length 22" Outer Hole 3/16" Thickness .165 Type Low Lift Width 2-3/4" Crossed From: WA-346RH J. THOMAS WA22R MOW MORE WA346RH J. THOMAS 050565 LESCO 3446 ROTARY 355-024 STENS 355024 STENS 50-3360 WINDSOR 503360 WINDSOR 5705-3 WALKER 5705-4 WALKER 57053 WALKER 57054 WALKER 7-0496 PRIME LINE 704964 PRIME LINE 91-913 OREGON 91025 LASER SALES 91913 OREGON A physical address must be provided, NO PO BOXES. Thanks for looking!