The Channellock 957 Wire Stripper Cutter has precision holes for wire stripping and is designed to cut copper wire only. The lean plier nose pulls and loops wire. It strips AWG Solid wire sizes: 10, 12, 14, 16, and 18; and strips AWG Strainded wire sizes: 12, 14, 16, 18, and 20. Its scissor-type blades are precision ground and heat treated to hold their edge. Highly visible AWG Solid and AWG Stranded wire gauge sizes are painted and embossed in the metal. It has CHANNELLOCK BLUE comfort grips.