The 810M has an extra wide 18" infeed opening to handle huge amounts of brush with ease. The infeed handle has a full reverse, neutral, slow and fast speed and is easily accessible from either side of the infeed. Double bed knives, one horizontal and one vertical, are adjustable and sharpenable and provide excellent chipping power when processing vines, palmfronds and evergreens. Easy to operate & easy to maintain, this unit will provide years of dependable service.