Designed to cut copper wire only. Precision holes for wire stripping. Lean plier nose pulls and loops wire. Scissor-type blades are precision ground and heat treated to hold their edge. Highly visible AWG and mm wire gauge sizes painted and embossed in the metal. CHANNELLOCK BLUE comfort grips These will strip AWG wire sizes: 10, 12, 14, 16, 18, 20 and 22. Also strips mm wire sizes: .80, 1.0, 1.3, 1.6, 2.0, 2.6.