An improved shear cutting blade comprising a plurality of opposing countersunk fastener holes and four cutting edges is disclosed. Four cutting edges and two mounting surfaces are provided, along with threaded, countersunk holes to allow fasteners to secure the blade in multiple orientations. The blade is ideally utilized in a compacting and baling process, wherein loose scrap metal and other material are pressed from a collection point and into a compaction chamber, wherein the blade is passed over the material as it is pressed into the chamber, shearing the debris into a compact, baled form. The blade can be rotated and secured against either mounting surface, and rotated to allow use of any of its four cutting edges, providing reusability and improved service life of a single blade during operation.
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