Quad/Graphics Inc. has laid off an unspecified number of workers and announced that it would close two plants, according to a representative with the ... Quad/Graphics Inc. has laid off an unspecified number of workers and announced that it would close two plants, according to a representative with the ...
How to Use a Reciprocating Saw and Jigsaw. A jigsaw is a type of reciprocating saw; learn the differences and tips for using these tools. The reciprocal saw uses a reciprocating, or alternating direction, motor to move a blade back and forth.Blades are available for cutting wood, metal, plastic, and drywall or plaster.
A hole saw and ring saw also use a rotary motion but are different from a circular saw. Circular saws may also be loosely used for the blade itself. Circular saws were invented in the late 18th century and were in common use in sawmills in the United States by the middle of the 19th century.