Hydraulically Powered - Includes Greenlee EHP Battery Hydraulic Pump;Powerful 30-Ton Ram - Easily and quickly shears through tough material;Laser-Marked Measuring System - Our shearing tools accurately shear each piece to precise length with movable arm and measuring stop;Quick Die Change System - Easily swap out dies with no tools or loose parts;Automatic Retraction - Retaining spring arm brings back dies into starting position for next cut;Material Rest - Keeps material perpendicular for clean cuts and extended die life;Hydraulic Hose Through-Hole - Safely contains hydraulic hose from the pump to the ram