FeaturesThe 555 series has solid electronics that eliminates arcing and prevents damage from temporary power lossThe solid state electronics system is rated for 1000000+ bendsOperated by a pendant constructed with a high impact over molded case and rare earth magnets for strong holding power to the bender1/2 to 4-5/16 in, 3/4 to 5-1/2 in, 1 to 7 in, 1-1/4 to 8-13/16 in, 1-1/2 to 8-3/8 in, 2 to 9-1/4 in bend radius