The Greenlee 62-1/2" Hydraulic Chain Saw is a powerful hydraulic-powered chain saw designed for cutting and trimming trees and logs up to 62-1/2" in diameter. It has a two-stage hydraulic pump that delivers up to 10,000 psi to the 25" guide bar and chain. The saw weighs 79 lbs and has an 18" x 7-1/2" x 12" frame. It is designed for use with any hydraulic system that delivers 4-8 gpm and 1,500 psi minimum. This heavy-duty saw provides fast, efficient cutting while minimizing fatigue. The chain tension is tool-free which allows for quick adjustments.