Oregon 92-015 Pack of 3 Mower Blades - 17-7/8" Pack of 3 - Requires 3 blades for 50" cut Length: 17-7/8"; Width: 2.50";Thickness: 0.203"; Center hole size: 3/4": Air Lift: 1" Replaces: Arnold 490-110-C120; Cub Cadet 01010168-0637,01010168-X,OCC-01010168,01010168; J Thomas BL-179; MTD OCC-01010168,01010168,01010168-0637,01010168-X; Mowmore CC11250; Rotary 11250; Stens 325-179; Sunbelt B1CC1403; Tractor Supply 4442296 Fits: Cub Cadet: LT1000, SLT1500, GT1500, M50-KHS, Z-Force; MTD: Z Force, M50-KHS