BH110 Series Single-Spindle Rotary Cutters Cutting Widths: 44″ | 56″ | 68″ Cutting Capacity: 1″ Min. Tractor PTO HP: 15 | 20 | 25HP BH210-2 Series Single-Spindle Rotary Cutters Cutting Widths: 5′ | 6′ | 7′ Cutting Capacity: 2″ Min. Tractor PTO HP: 25 | 30 | 50 BH310-2 Series Single-Spindle Rotary Cutters Cutting Widths: 5′ | 6′ | 7′ Cutting Capacity: 3″ Min. Tractor PTO HP: 35 | 45 | 55HP BH410 Series Single-Spindle Rotary Cutters Cutting Widths: 6′ | 7′ Cutting Capacity: 4″ Min. Tractor PTO HP: 60 | 70 BH510 Series Single-Spindle Rotary Cutters Cutting Widths: 6′ Cutting Capacity: 5″ Min. Tractor PTO HP: 70