A chisel is needed to cut through/carve dense and sturdy materials like metal, stone, and wood. This tool is not effective when used alone, and it's used together with a hammer/mallet. It's struck on the handle top to apply sufficient pressure to cut or break materials like stone and metal. Chisels may be also integrated into production lines, where they are actuated by mechanical, pneumatic or hydraulic contrivances. Chisels vary in their design based on the matter they are applied on and the types/shapes of the cuts they leave on the surface. These instruments are commonly applied in decorative woodworking, furniture building, metal & stone carving.