Blade for lawn mower mower Adaptable to: Husqvarna Jet 50, 51, Partner 50, 51, Roper 20" Features: Length: 508 mm Centre hole diameter: 16 mm Side hole diameter: 9.5 mm Side hole centre distance: 48 mm Code: 22-166 Reference code: 531 00 60-63, 532 85 09-72 Husqva rna and Partner [AYP, FLYMO, MARAZZINI, MURRAY, NOMA].