This Professional Electrician Heavyduty 28 In 1 Pliers Is Equipped With Wire Stripping Pliers And Wire Breaking Pliers. It Is Made Of Crv High Hardness Steel And Chromium Vanadium Steel, And Can Quickly Cut Various Materials (Such As Copper Wire, Cable, Twisted Pair, Sheathed Wire, Aluminum Wire, Etc.) With Neat Cuts. A Sharp Blade Can Easily Strip The Wire Without Damaging The Inner Core. Upgrade The Type Of Safety Switch By Adding Springs.