Rotary saw

The Rotozip Tool Corp was a company started by Bob Kopras, an American drywall installer who pioneered this type of saw.

[2] The design is similar to a small wood router but usually features only one handle for single-handed operation.

[3] Rotary saws come in various types and configurations, each designed for specific tasks and materials.

[15] A particular manufacturer has a hand-held version for making difficult cuts, which would not be possible with other implements.

[16] Firefighters also use rotary saws to cut holes through walls to access certain areas quickly to fight fires and rescue civilians.