70/30 Chain – 70% Aggressive Tungsten Carbide Cutter teeth (very well suited for this style of trencher). 30% are dirt teeth, which allow you to move more dirt out of the trench. Chain is 6" wide. Easy manual side shift. (Saves you over $700 compared to a hydraulic side shift.) Flow Rating: 14 - 23 GPM. Hoses and ½” ISO flat-faced couplers provided. 18" Auger discharge.