Heavy duty wire stripper with robust forged steel makes this 4 times stronger than other wire strippers. Precision ground stripping holes. Strips 10 to 18 AWG solid and 12 to 20 AWG stranded wire. Twist up to three wires at a time No. 6-32 and No. 8-32 screw shearing. Knurled jaw for twisting, grabbing and looping wire. Induction hardened cutting knives for long life. Hot-riveted joint ensures smooth action and no handle wobble.