A mortise drill bit is specifically designed for creating square or rectangular holes, known as mortises, which are used in woodworking to join pieces of wood together. It typically consists of two components: a drill bit and a chisel. The drill bit bores a round hole, while the chisel, which surrounds the bit, squares the edges of the hole to create a mortise. This combination allows for precise and clean cuts, essential for strong and accurate joinery.
In contrast, a regular drill bit is designed to create round holes and is used for a variety of materials, including wood, metal, plastic, and masonry. Regular drill bits come in various types, such as twist bits, spade bits, and hole saws, each suited for different applications and materials. They do not have the capability to create square holes or perform the chiseling action required for mortises.
The key differences between the two are their design and purpose. Mortise drill bits are specialized tools used primarily in woodworking for creating mortises, while regular drill bits are versatile tools used for general drilling tasks across various materials. Mortise bits require a mortising machine or a drill press with a mortising attachment to function effectively, whereas regular drill bits can be used with standard handheld drills or drill presses.