A rotary saw, spiral cut saw, RotoZip or cut out tool is a type of mechanically powered

saw A saw is a tool consisting of a tough blade, wire, or chain with a hard toothed edge. It is used to cut through material, very often wood, though sometimes metal or stone. The cut is made by placing the toothed edge against the material and mo ...

used for making accurate cuts without the need for a pilot hole in wallboard, plywood, or another thin, solid material. The Rotozip Tool Corp was a company started by Bob Kopras, an American drywall installer who pioneered this type of saw. Rotozip was later acquired by Bosch Tool Corp. in 2003. This type of tool was originally developed for making cut-outs in drywall but it was later discovered that a myriad other materials could easily be cut using the tool. The design is similar to a small

wood router The router is a power tool with a flat base and a rotating blade extending past the base. The spindle may be driven by an electric motor or by a pneumatic motor. It routs (hollows out) an area in hard material, such as wood or plastic. Routers a ...

but usually features only one handle for single handed operation. Bits look similar to a

twist drill Drill bits are cutting tools used in a drill to remove material to create holes, almost always of circular cross-section. Drill bits come in many sizes and shapes and can create different kinds of holes in many different materials. In order ...

or end mill; some cut on the upward twist, and some cut downwards. The cutting edge on the flutes actually slices (either upwards or downwards) through the material which means that they can cut in any direction.

Medical and emergency use

A rotary reciprocating saw is a type of

that spins a cutting implement around a rotary axis, instead of thrusting it along a linear axis. The first use of such devices was in medicine, where cutting through bone warranted the need for a saw with minimal stroke length, and a cutting action that could be implemented through depth cut rather than a follow through cut. The timber industry now also uses this type of action to cut in the same manner. A particular manufacturer has a hand-held version for making difficult cuts, which would not be possible with other implements.

Firefighter A firefighter is a first responder and rescuer extensively trained in firefighting, primarily to extinguish hazardous fires that threaten life, property, and the environment as well as to rescue people and in some cases or jurisdictions also ...

s also use rotary saws to cut holes through walls to access certain areas quickly to fight fires and rescue civilians.

References

Saws {{Firefighting ca:Serra radial es:Sierra de brazo radial

Medical and emergency use

See also

References