Crescent Wrench
Also known as
Adjustable Wrench, C Wrench, Shifter, Spanner (AU/UK)
Used for
Tightening or loosening nuts and bolts of varying sizes. The adjustable jaw means one tool covers a wide range of fastener sizes — essential for rigging hardware, truss bolts, and motor fittings.
Trade note
"Crescent" is actually a brand name — Crescent Tool Company trademarked the design in 1907. Like "Kleenex" for tissues, the brand name became the generic term in North America. Elsewhere it's called an adjustable wrench or spanner.
Direct answer
Crescent Wrench is used for tightening or loosening nuts and bolts of varying sizes. The adjustable jaw means one tool covers a wide range of fastener sizes — essential for rigging hardware, truss bolts, and motor fittings. It is also known as Adjustable Wrench, C Wrench, Shifter, Spanner (AU/UK). Trade note: "Crescent" is actually a brand name — Crescent Tool Company trademarked the design in 1907. Like "Kleenex" for tissues, the brand name became the generic term in North America. Elsewhere it's called an adjustable wrench or spanner.
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