Base Dimension: 18 inches
Bolt Circle Diameter: 11 inches
Bolt Pattern: 4 Bolt
Max Height: 29 feet
Shaft Max Outer Diameter: 7 1/2 inches
Spec for Westwood Bi-Metal Base- 12 Flat Flute Shaft
Ordering sheet for Westwood Bi-Metal Base- 12 Flat Flute Shaft