The spelling of "keyhole saw" can be explained through its IPA phonetic transcription: /ˈkiːhoʊl sɔː/. The first syllable "key" is pronounced with the long "e" sound, followed by the "h" sound in "hole." The second syllable "saw" is pronounced with the "s" sound, followed by the "aw" sound. Together, the word refers to a saw with a narrow, curved blade that is ideal for making cuts in tight spaces. Its unique spelling reflects the phonetics of the word.
A keyhole saw is a manual cutting tool primarily designed for making small, intricate cuts in various materials, such as wood, drywall, plastic, and even metal. Its structure consists of a handle, usually made of wood or plastic, connected to a thin blade with a unique shape resembling the outline of a keyhole, hence the name.
The keyhole saw is commonly used in carpentry, woodworking, and construction projects for making precise and controlled cuts, especially in tight or hard-to-reach spaces. The slim, tapered blade allows for greater maneuverability, enabling the user to navigate corners, curves, and intricate designs with ease. The blade typically has small, sharp teeth along one or both sides, which effectively bite into the material and facilitate efficient sawing motion.
This versatile tool is often used for tasks like cutting openings for door locks, creating holes for electrical outlets, trimming excess material from paneling, or shaping woodwork. Its small size and lightweight construction also make it suitable for DIY projects and household repairs. Though primarily designed for handheld use, some keyhole saws may feature a handle with a pistol-grip design for enhanced comfort and control.
Overall, the keyhole saw is a valuable tool for craftsmen and individuals who require precision cutting in confined areas, providing them with the ability to execute intricate cuts with accuracy and ease.
The word "keyhole saw" is composed of two parts: "keyhole" and "saw".
The term "keyhole" refers to the shape of a keyhole, which is the opening in a lock that allows a key to be inserted. It derives its name from the fact that the hole resembles the shape of an old-style keyhole, with a round or oval section at the top and a narrower section at the bottom.
The term "saw" comes from the Old English word "sagu" or "saga", which referred to a cutting instrument. The use of the word "saw" in this context refers to a tool that is used for cutting or shaping wood or other materials.
Therefore, a "keyhole saw" is a type of saw that is designed with a narrow, tapered blade, similar to the shape of a keyhole.