"the Ideal Chain For Woodcutter Professionals Who Use 3/8" Saws. "the Square-angle Cutting Edges And Reduced Vibration" Offer Optimal Performance.the Curved Depth Delimiters Prevent The Cutting Edges From Cutting The Side Walls Of The Cut Sections, Ensuring Greater Precision. & Benefits • Lubritec ™ Keeps Your Chains And Guides Bars Oiled, Ensuring Less Friction And Longer Life • Blue Teeth Offer Maximum Protection Against Corrosion • The Baton On The Upper Edge Of The Cutting Edge Makes Precision Grinding Easier Our Exclusive Ocs-01 Steel Offers More Durability. "