Old Ironsights wrote:Ummmm....
Isn't spanner wrench a tautology?

No, it's not:
tau·tol·o·gy
1. needless repetition of an idea, esp. in words other than those of the immediate context, without imparting additional force or clearness, as in “widow woman.”
2. an instance of such repetition.
3. Logic. a. a compound propositional form all of whose instances are true, as “A or not A.”
b. an instance of such a form, as “This candidate will win or will not win.”
There are many forms of wrenches, spanner describes only one. Spanner is also not necessarily a wrench of any form, either. So, it is not a tautology, unless you are in England where that's what they call any form of wrench. But we aren't in England, are we.