From Dewalt website:
This Pole Hedge Trimmer is designed to cut through a variety of landscape overgrowth. The pole hedge trimmer has a high output motor and 22-inch hardened steel laser-cut blades engineered for clean, fast cuts on branches up to 1-inch thick. The 7-position, 180° articulating head allows you to customize cutting angles for hedges of any shape and size. The tool itself is 7 ft but, when in use, can have a total reach of 12 ft.
• 7 Position, 180 Articulating Head: Customized cutting angles for hedges of any shape and size
• 22-inch Hardened Steel, Laser-Cut Dual-Action Blade
• Fast Cutting with 2800 SPM, 1-inch cutting gap
• Well Balanced Design & Detachable Connecting Pole: Length of 7 ft
• Serrated edges for superior cutting performance on thick branches