CARPENTRY CHISEL 1.Made of 65#nanganese steel,overall heat-treatment,hardnessHRC52-56 2.Plastic covered handle CARPENTRY CHISEL1.Made of 65#nanganese steel,overall heat-treatment,hardnessHRC52-562.Plastic covered handle3.Suitable for carpentersize: 3/8'' 1/2'' 5/8'' 3/4'' 1'' CARPENTRY CHISEL