"3/8" "chain With Optimal Performance, Ideal For Jobs With High Production Needs, The Square And Low Vibration Corner Cutting Edges Offer Optimal Performance, The Curved Depth Delimiters Prevent The Cutting Edges From Cutting The Side Walls Of The Cut Sections, Guaranteeing More Precision Features & Benefits • Lubritec ™ Keeps Your Chains And Guide Bars Oiled, Ensuring Less Friction And Longer Life • Blue Teeth Offer Maximum Protection Against Corrosion • The Baton On The Upper Plate Of The Cutting Edge Makes It Easier To Sharpen Precision. • Our Exclusive Ocs-01 Steel Offers More Durability. "