squaring shear

== English == === Etymology === From squaring +‎ shear. === Noun === squaring shear (plural squaring shears) A machine, often operated by foot pedal or hydraulics, used to cut sheet metal in a straight line to create 90-degree angles and trim edges to create perpendicular corners. Hypernym: guillotine shears The shear or blade on a squaring shear machine. === Further reading === "Shears". https://thing.cs.usm.maine.edu/