http://ventrac.com/products/attachmen... The HQ680 Tough Cut Mower is designed for mowing high grass, thick weeds and brush. A large baffled front opening allows brush to enter for cutting and hinders debris from escaping.
Three heavy-duty blades counter rotate to cut and drop materials evenly without windrowing. Capable of cutting material up to a half inch in diameter, the HQ680 makes short work out of heavy brush.
The Tough Cut can be adjusted to three cutting heights: 3, 3 5/8, and 4 1/4 inches. Easy servicing of belts and pulleys is provided by the hinged and removable cover. The tilt-up deck provides easy access to the blades.