This Parallel Action Bending/ Forming pliers are simple to use pand reduces repetitive wrist motion saving time. Use on 20 gauge or lighter soft wire, 24 gauge or lighter soft metal blanks and even stringing wire. Head and jaws are made of high grade steel. Total Length 5-1/4” (135 mm). Jaw Opening: 0.400”(10.25 mm) These pliers are equipped with springs inside both handles