Hardness — harness and strength of the cutting tool must be maintained at elevated temperatures, also called hot hardness (Figure 1.1) Toughness — toughness of cutting tools is needed so that tools ...

Ultimately, there are better tools for cutting metal. The circular saw should be left in the woodshop. A 4 1⁄2-inch angle grinder is by far one of the most useful and inexpensive fabricator tools.