The metal in a wrench is all the same. The only difference is if the manufacturer chose to polish some portion of the wrench’s head or handle. Wrenches with black industrial finishes are ...

In his book The Mathematical Universe, mathematician William Dunham wrote of John Venn’s namesake legacy, the Venn diagram, “No one in the long history of mathematics ever became better known ...

you’re likely to turn to the wrench that can sink its literal teeth into pipes. That’s a pipe wrench, also known as a Stillson wrench. And while all tools have pushed manufacturing forward ...