Cultivation Howard CH4420DT Rotary Hoe HOWARD CH SERIES - TOUGH AS NAILS CH rotary hoes are designed and built for professionals who rely on machinery for their livelihood. CH rotary hoes are legendary for toughness, durability and resale value. The modular toolbar style frame allows rippers and furrowers to be fitted for a one pass operation. CH4420DT Working Width: 4.17m Tractor HP: 160-300hp