1.forged steel jaws with heat treatment 2.malleable cast handle Dipped Handle American Type Heavy Duty Pipe Wrench material:45#carbon steel/cast ironhead:45#carbon steel,handle: cast iron.nice appearance , high quality and competitive pricesize:8",12",14",18",24",30",36",42",48"we are professional manufacture. with 50years experience. supply to Walmart.CPI ect.good quality with best price.