Founded in the early 1920s, Corona Clipper, Inc. is a leader in the marketing and manufacturing of professional and consumer tools for the lawn and garden, landscape, irrigation, construction and agriculture markets. With a retail and distribution network that extends throughout the United States and Canada, Corona’s proven designs, quality manufacturing processes and unparalleled customer service make it the best choice in tools for contractors, agricultural professionals and avid gardeners alike. Each tooth is triple ground providing three multi-faceted angles to maximize cutting efficiency and wood removal. Focused Impulse hardening process on blade teeth maintains tooth sharpness after multiple cuts without adding brittleness to overall blade. Hard chrome layer is added to the blade which reduces friction during the cut for less effort and provides a rust preventative layer for longer life. Limited lifetime warranty