Chain size: 8”, Anti-vibration and Anti-kick back Chain pitch: 3/8” Bar size: 8” No-load speed: 2500 rpm±10% Chain linear speed: 5 m/s Oil consumption > 3 ml/min Oil contents: 60 ml Auto-oiler feature ensures bar and chain are lubricated for the best cut without the hassle for ease of use 775 motor (Compatible to JD 887 motor, blade speed will be: 5.8m/s, cutting efficiency increased by 15%) Telescoping shaft, pole saw can be extended from 1.96m-2.8m Optional 2 or 3 segment in package With shoulder belt.