What Is a Keyhole Saw?
A keyhole saw is a precision cutting tool with a long, thin blade used primarily for cutting tight curves and small holes in soft wood, plastic or drywall. Other names for the tool include alligator saw, drywall saw and compass saw. Keyhole saws are often used to create openings for pipes and electrical wiring, and for making small incisions that cannot be made with drills, electric saws or auger bits due to size constraints. The blade of the keyhole saw is attached to a wooden, iron or plastic handle, and blades vary widely in length, width and number of teeth. Most keyhole saw blades are 5 to 15 inches (12.7 to 38.1 centimeters) in length, with 5 to 20 teeth per inch. Keyhole saws may be fixed or retractable, depending on how the blade attaches to the handle.
