If there is no cover press the wire against a stud and use it as a guide.
Fishing wire through wall with insulation.
A decent stud finder is a must have for every wire fishing job but.
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Flex bits are great for.
Keep the fish tape against the inner edge of.
Thread wires past insulation.
Feed it up to the 3 by 5 inch hole at the top of the wall.
Attach the cable you want to pull on the wire leader this has a hook for the wire with a strong magnet attached.
Flex bits and glow rods are the go to tools pros use for fishing wires.
While handling fiberglass insulation wear gloves eye protection and a mask that covers your mouth and nose.
Fishing wires through cellulose cellulose insulation can be easy to fish the wiring through with the fish tape if it is loose fill but if it is glued in then it is significantly more difficult.
Fishing electrical wire through walls check the whole wall cavity with a stud finder.
The tools you need.
Insert the end of the fish tape into the hole you cut into the wall for the electrical box.
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Then using short pulling motions pull the leader magnet right.