This 1/4" socket wrench has a slot which allows it to slip over 1/16" tubing. That makes it especially useful when nuts are difficult to access with an open end wrench.
Each kit includes two sizes of tapered stabbers for retreiving stuck capillary size ferrules.
These are standard garden variety open end wrenches which we stock as a convenience to our customers.
These come in handy when an FS tube breaks in a union, or when you need to enlarge the ID of an FS adapter.