Body material: high carbon steelHandle diameter: 20 (mm)Bit width: 20 (mm)Chisel type: straightChisel length: 110 (mm)Bit thickness: 0.1 (mm)Chisel body width: 4 (mm)Specifications: 5x4,6x4, 7x4, 8x4, 9x4, 10x4, 11x4, 12x4, 13x4, 14x4, 15x4