Definition: A "fishtail bit" is a type of drilling tool that is used to create holes in materials, such as wood or metal. It has special cutting edges that are usually made strong and resistant to wear, meaning they last a long time without getting dull.
In more advanced contexts, a fishtail bit can be discussed in terms of its design and efficiency in drilling applications. For example, it might be mentioned in woodworking or metalworking classes when discussing the importance of choosing the right tools for specific tasks.
While there are no specific idioms or phrasal verbs that directly relate to "fishtail bit," you can consider the phrase "drill down," which means to investigate something in detail, much like how a fishtail bit drills into materials.
A fishtail bit is an essential tool for anyone involved in drilling projects, providing durability and precision.