XHT 21-1/4", 27/32" Mower Blade - B1MU2630 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 42" cut. Center Hole 27/32" Length 21-1/4" Thickness .134 Type Medium Lift Width 2-1/4" Crossed From: MU6162 MOW MORE 056252E701MA MURRAY 0905101E701 MURRAY 095101E701 MURRAY 149120 LOWES 335-058 STENS 335-063 STENS 335058 STENS 335063 STENS 456252 MURRAY 456252MA MURRAY 490-110-0083 ARNOLD 4901100083 ARNOLD 492418 MURRAY 492418MA MURRAY 5527 MURRAY 5527MA MURRAY 56252E701 MURRAY 6166 ROTARY 7-06422 PRIME LINE 706422 PRIME LINE 91174 LASER SALES 91625 LASER SALES 92418E701 MURRAY 92419 MURRAY 92419E701 MURRAY 95101E701 MURRAY 95102E701 MURRAY 97-014 OREGON 97-020 OREGON 97014 OREGON 97020 OREGON A physical address must be provided, NO P.O. BOXES. Thanks for looking!