Multiflute

Multiflute refers to a type of cutting tool that possesses multiple cutting edges, or flutes, along its cylindrical body. These flutes are typically helical grooves that serve to evacuate chips from the cutting area and provide sharp cutting edges. The number of flutes on a tool can vary significantly depending on its application, ranging from two to many more.

Tools with a lower number of flutes, such as two or three, are often used for drilling in softer materials or for applications where chip evacuation is critical. The increased space between the flutes allows for larger chips to be cleared easily, preventing clogging and potential tool breakage. In contrast, tools with a higher number of flutes, such as four, six, or more, are generally employed for milling operations. The increased number of cutting edges allows for a smoother surface finish and higher material removal rates in harder materials, as the load is distributed over more flutes.

The design and geometry of the flutes, including their helix angle and rake angle, are carefully engineered to optimize performance for specific materials and cutting conditions. Multiflute tools are commonly found in a variety of forms, including drills, end mills, reamers, and taps, each designed for distinct machining tasks. The selection of a multiflute tool with the appropriate number of flutes is a crucial aspect of efficient and effective machining.