A specialized, often hand-held, power tool used for cutting hard materials, ceramic tile, metal, concrete, and stone is known as a disc cutter. This tool is very similar to an angle grinder, chop saw, or even a die grinder, with the main difference being the cutting disc itself (a circular diamond blade, or resin-bonded abrasive cutting wheel for a disc cutter vs. an abrasive grinding wheel for an angle grinder). This tool is very effective in cutting very hard materials, especially when compared to hand tools.
Okoume is the wood of the Okoume tree (Aucoumea klaineana), a species native to west-central Africa, in particular Gabon, Equatorial Guinea, and the Republic of Congo. The lumber of this tree is known by many names, among them Acoume, Gaboon wood, Uume, and Zouga. Within its native range, Okoume is considered widespread and relatively common. Okoume is widely used for veneers and is often processed into plywood.