Deep Tine Aerator one (1) Unit 4.1.1 Working width – seventy–two (72) inches. 4.1.2 Working depth – Variable to ten (10) inches. 4.1.3 Hole Spacing (side to side) – two (2) inches to four (4) inches, depending on the size. 4.1.4 Hole Spacing (forward) @ 540 RPM • six (6)-inch spacing @ 3.6 MPH. • four (4)-inch spacing @ 2.4 MPH. • two (2)-inch spacing @ 1.2 MPH. 4.1.5 PTO Speed – Up to 540 RPM. 4.1.6 Productivity – Forward Hole Spacing • two (2) inches – 30,128 square feet/hour. • four (4) inch – 60.256 square feet/hour. • six (6) inches – 90,384 square feet/hour. 4.1.7 Tines – Comprehensive range of coring/solid tines. 3/8 inch to one (1) inch coring. 3/16 inch to 3/4-inch solid tines. 4.1.8 Twin Belt Drive – Variety of crankshaft speeds 485 rpm to 385 rpm. 4.1.9 Vibra Stop – Absorbs vibrations from extreme compaction or stones...