Blade kit with blade holder hub for GRIN model HM46 push mower Blade size: Blade length: 460 mm Central hole diameter: 22 mm Side hole diameter: 8 mm Blade holder hub size: Hub height: 95 mm Upper diameter: 47 mm Lower diameter: 62 mm Upper hole diameter: 20 mm Lower hole diameter: 8 mm Blade CODE 46 : 46 PRT-0129 CODE Thrust blade hub: BT-SP-0005