The MSD-III mobile demolition shears have more cutting force and larger blade cutting area for greater productivity and shearing strength. The four-way indexable blade is longer, providing more cutting surface. Cutting blades and the guide blade are tapped, eliminating hardware and making maintenance faster and easier. Also, the guide blade and wear blade are larger, further reducing maintenance. The new cast piercing tip is made of harder material. Other changes in the jaw design have eliminated stress areas while replaceable wear parts have been added.