The most abundant metal element in Earth's crust. Aluminum originates as an oxide called alumina. Bauxite ore is the main source of aluminum and must be imported from Jamaica, Guinea, Brazil, Guyana, etc.
A coping saw is used for creating fine work such as the joints for a timber cornice. For such projects, no power tool is able to replace the accuracy of the coping saw. Coping saws can also be used to cut shapes out of the middle of a piece of wood or other material. To do this, first drill a small hole into the wood. Then remove the blade from the frame, place it through the drilled hole and reattach it to the frame. You can then proceed to saw out the desired shape. Crosscut Saw.
Reciprocating saw at the Roscheider Hof Open Air Museum. Reciprocating saws have many uses; here it is cutting through hard-to-remove nails in a staircase. A reciprocating saw is a type of saw in which the cutting action is achieved through a push-and-pull (reciprocating) motion of the blade. The term is commonly applied to a type of saw used in construction and demolition work.