Thank you for your feedback. Greenworks blades are shipped with a protective coating applied to help prevent corrosion and protect the blade during storage and transportation. This coating can make the blade edge feel less sharp when first inspected out of the package, but it is designed to wear away during the first few minutes of use, allowing the sharpened steel edge underneath to perform as intended. Before installation, we recommend checking that the blade is the correct model for your mower and inspecting it for any shipping damage. When installing the blade, be sure it is secured properly and installed according to the instructions in the owner’s manual. For the best cutting performance, keep the mower deck clean, avoid cutting excessively tall or wet grass when possible, and ensure the blade is installed with the cutting edge facing the correct direction. We appreciate you sharing your experience and hope the blade provides the cutting performance you expect. If you ever have specific questions or concerns about our products, contact Greenworks via chat on our website, call us at 1-888-909-6757 (1-888-90WORKS) or refer to the FAQ ask section of the tool or ask us a question, anytime.