Matrix II type alloy high speed steel cutting edge. Shatter resistant blade and shock resistant precision milled teeth for longer tooth sharpness. Tuff Tooth technology for smoother feel, faster cut, longer blade life and reduced blade strippage. High wear and high heat resistant. Made especially for high amperage machines. For heavy-duty work; 44 percent thicker than standard blades. Applications: Cuts stainless steel 3/16" to 3/4".