Instructions / Assembly
HOW TO RUN WIRES THROUGH EXISTING WALLS USING CABLE BIT TOOLS
You will need: Measuring Tape, Power Drill, Cable Bit for Wood, Lighted Bull Nose Tip or Bull Nose Tipped Fish 
Rod, Hook Tip, 2 Fish Rods, Good Quality String
For this example we have removed most of the drywall and insulation from the wall and ceiling giving you a clear view 
of what is happening inside the wall.
WARNING: Never use these drills in side a wall that has existing wiring or plumbing!
Measure from the top of the wall 
down to the opening you will be 
pulling the wire through so you 
know when you will be clearing the 
top plate. This is to make sure you 
do not drill through the roof and to 
let you know if you are hitting the 
rafter. Rafters are not always in the 
same place as the wall studs.
Make sure you are using a drill 
bit and extension long enough 
to reach and then mark your drill 
bit with a piece of tape so you 
will know when you should be 
breaking through the top plate.
If this is an insulated wall, make 
a cut in the insulation at your 
opening and make sure you get 
the drill bit completely through the 
insulation and into the back corner 
before starting your power drill. 
Start your drill bit into the wall and 
aim it into a back corner where the 
stud meets the wall. Use the walking 
ability of the drill bit to walk it up 
the corner by giving it short burst of 
rotation with your power drill.
Drilling in a corner will allow you to 
easily locate the hole with your sh 
rods and will minimize problems with 
encountering insulation.
Keep in mind that these bits are not 
indestructible so try and keep your 
power drill as close to the oor as 
possible. This will keep the bit from 
arching too much.
A second hand is recommended.
When you reach the re block gently 
push the shank into the opening in 
the direction of the back corner. This 
will straighten out the bit so it will 
drill correctly through the obstruction 
and not veer off course.
WRONG 
DRILLING ANGLE
CORRECT 
DRILLING ANGLE
2
31
CORRECT DRILLING ANGLE
WRONG DRILLING ANGLE
MADE IN USA
 EAGLE TOOL US www.eagle-tool.us P - 815-459-4177 F - 815-459-4178 



