Open end wrench sets

Open end wrenches only

— sets containing open end wrenches only.

For more information about keys of this type, see the corresponding item in the "Set includes" list. Also note here that the open-end design is a “classic of the genre” for wrenches, but nowadays such a tool is relatively rare — this is due to the spread of more advanced types of wrenches, primarily combined ones (see ibid.). As for specialized sets of such a tool, they may differ in the number and size of keys. You can refine these parameters, albeit approximately, using the lists of "Items in the set" and "Big key in the set" (for more details, see the help for these items).