Definitions for "SPANNER WRENCH"
n. a tool for installing, removing or adjusting a threaded part. The tool is designed to engage one or more holes or depressions which are peripheral or not on-center to the part axis.
a tool that can do almost anything, if you have enough creativity
A large hooked wrench used for adjusting coil-over spring perches. As designs differ, most coil-over kits include the proper tool for adjustment. ( Tricked Out episode 101)