The author uses the blunt end of a utility knife to remove the knock outs in the box for the two cables.
The author will loop the cables before they enter the box. To gauge where to begin stripping off the outer jacket, he grips the cable at the bottom of the box with a finger and thumb.
Starting just below his thumb, the author carefully slits the outer jacket of the cable with a utility knife. For the second cable, the author begins the slit about 1 inch farther down.
After both cables have been stripped, the author feeds the first cable into the box in a loop. The loop gives the crew extra length in case one of the conductors gets damaged during drywalling.
After both cables have been fed into the box, the ground conductors are separated from the other conductors.
The author starts joining the two ground conductors by twisting them together by hand.
Next, the author uses pliers to tighten the twist.
Because just a single ground conductor is needed for the receptacle, the author cuts back one of the connectors at the twist.
The proper size copper crimp sleeve slides onto the twist, and pliers crimp the sleeve.
After pushing the twisted grounds to the back of the box, the author cuts all the conductors to a length of about 8 inches.
Finally, the author rolls and folds the bundle of conductors, pushing them as far into the box as possible.