- Provide longest life when cutting tougher materials
- High speed steel cutting edges are hardened to Rc 65-67 to resist heat and wear
- Flexible backers resist shattering, resulting in safer, longer lasting blades
- Vacuum heat treating creates harder edge for faster, easier cutting
![M.K. Morse 12" 32TPI BI-METAL HACKSAW BLADE, 10/BD, #HHB1232 M.K. Morse 12" 32TPI BI-METAL HACKSAW BLADE, 10/BD, #HHB1232](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/270359/503793/OR-497-HHB1232__13239__91125__18946.1704292123.jpg?c=2)