Slug Out™ Knockout Driver instruction manual
4
SETUP AND OPERATION
DRILLING GUIDE HOLE
1. Mark the center position; drill a 1/8" pilot hole.
2. If working to close conduit clearences, mark the center position by scribling cross
lines shown in figure 1.
3. When assembling the punch to the pull rod, align the cross marks with the four
marks on the outer die surface.
NOTE:
If pre-punched knockouts are already in the desired location, drilling a guide
hole is not required.
4. Enlarge the 1/8" pilot hole with a 7/16" drill bit or the step drill bit.
PUNCHING 1/2" HOLES
1. Attach the square drive bit to driver drill chuck.
2. Thread the 3/8" draw stud into the mechanical knockout driver's 3/8" draw stud
receiver. (fig. 2 )
3. Slide the 1/2" die over the draw stud, flat side toward the mechanical knockout driver.
4. Insert draw stud through guide hole.
5. Thread the 1/2" punch to the draw stud. (fig. 3)
6. Make sure all punch cutter points are tight to the panel.
7. Insert square drive bit into the square drive bit receiver (fig. 4)
CAUTION: Use one hand to firmly grip the knockout driver handle and use the
other hand to firmly grip the driver drill. Brace yourself for a torque reaction. Failure
to observe this caution may result in injury or lossing your balance and falling.
8. Holding the mechanical knockout driver in position, keep pulling the trigger until
punch completely penetrates the metal.
9. Remove the punch set from the hole. Reverse the driver drill until draw stud is
exposed. Remove punch form draw stud. Slide the die off the draw stud. To
remove the slug, turn over and tap lightly on a solid wooden object.
Drilling of Guide Hole
Figure 1
