A high-efficiency cutting system for an autonomous mower provides a multiple blade tip cutting radius for a cleaner cut, and more complete mow. The system includes a spinning blade disk (102) provided within a housing (106) including a vertical standoff (152). The blade disk includes a first pair of cutting blades (134) located between the center (108) of the blade disk and the circumference (114) of the blade disk, and a second pair of cutting blades (136) located radially inward from the first pair of cutting blades. The cutting blades extend downward and away from the blade disk at an angle.
