Slide the turnbuckle housing onto the end of the rod.
Slide the terminator into the turnbuckle housing.
Lay the jig on the drilling surface, flat side down.
Equip a power drill with the appropriate size drill bit, according to the manufacturer’s instruction manual. Insert the tip of the drill bit into the pre-drilled hole on the jig.
Drill a hole through the terminator and rod.
Remove the jig.
Insert the roll pin into the drilled hole on the terminator so it is flush on both sides.
Slide the jig onto the turnbuckle housing. You should feel the roll pin snap into place, securing the jig to the rod.