Always turn off the circuit breaker and test the wiring with a beeper tester or voltmeter to make sure the circuit is not live. Reach inside of junction boxes, switch boxes, service panels and other applications to grab the wires with the hook or the T-groove to pull the wires out of the boxes. Use the T-groove on the VoltClaw-12 by sliding the 12 gauge wire into the groove and twisting the tool to grab the wire. The wire can be pushed, pulled or bent.