cruceta
lug wrench
cruz
cross
+
-eta
diminutive suffix
A cruceta is a lug wrench, which can be thought of as a small cross0-shaped tool (cruz0 + -eta1 diminutive1).
noun
- lug wrenchA cross-shaped tool used for tightening or loosening nuts and boltsNecesito una cruceta para cambiar el neumático. // I need a lug wrench to change the tire.