GE 15163 Quick Start Manual page 2

Knockouts
Each metal box comes with ½" and ¾" knockouts. Follow the pictures below to
remove knockouts.
For ½" knockout, place small blade screw driver as pictured above. Tap lightly to
punch knockout loose.
For ¾" knockout, first use screwdriver to punchout ½" knockout then use pliers
to remove outer ring.
Final result of ¾" knockout