Diamond tools with firmness, so everything made of special machining hard and brittle materials especially suitable for non metal materials, such as stone, tile, glass, ceramic, concrete, refractory materials, magnetic materials, ( diamond ) semiconductor, precious stones; also can be used for processing non-ferrous metal, alloy, wood, such as copper, aluminum, hard alloy, quenched steel, cast iron, wear-resistant composite board. The diamond carpenter with have been commonly used to build, building materials, petroleum, geology, metallurgy ( glass grinding wheel ), machinery, electronics, ceramics, wood, automotive and other industries.