13 ft. x 1/4" Mild Steel 13 ft. x 3/16" Stainless Features: Evolutionary Swing Beam Design. All Steel Frame, featuring box-type welded construction of the main frame and blade beam with dimensions optimized by computer assisted design to guarantee maximum rigidity. Accurate upper blade beam guiding system. Swivel mounted hydraulic cylinders for maximum durability. Cylinder pistons are hard-chrome plated. Hydraulic Unit located for convenient and easy access. High pressure hydraulic holddowns with built in pad to operate with pressure proportional to shearing force, eliminating or reducing marking on light materials while securing heavy material. Low rake angle of upper blade (minimizing distortion of narrow cut-offs). Rapid, single point blade clearance(blade gap) adjustment device. Easy blade resetting. Slow stroking device (inching) to check blade clearance. Easy adjustment of cutting length for shortening stroke when desirable if cutting narrow materials. When the stroke is shortened, the number of strokes per minute increases proportionately. 40" Heavy Duty, power, front operated back gauge, swing up type, so that longer material can clear the back gauge.