This listing is for (1). 7 Blade Set Complete Replacement Blade Set for a Jacobsen HR511 Lawnmower. Part # 96-696 4 Blades 23″ Length 1/2″ Center Hole 7/16″ Outer Hole 2 7/8″ Center to Center 2 1/2″ Width 1/4″ Thickness. Part # 96-795 3 Blades 23″ Length 1/2″ Center Hole 7/16″ Outer Hole 2 7/8″ […]