These wire strippers make easy work of cutting wire down to size, getting it stripped, and crimped properly. This multi-tool can easily handle a 3 core 20 or 18 AWG wire and strip all three wire jackets in one squeeze. This as been tested to work on 22 to 10 AWG wire. There is a plastic stop to ensure the same strip length each time. It can be moved sideways to allow for a longer free-style cut.