Differences between rotary files for different head types

Rotary files are available in a variety of head types, commonly including cylindrical, spherical, and flame head shapes, as well as flat files, round files, and tapered files designed for specific applications. These different shapes are designed so that the rotary burr can be adapted to different processing needs and workpiece shape.

1. Shape

Cylindrical: Usually used for general machining tasks with high versatility.

Spherical: For scenarios that require rounded transitions or curved surfaces.

Flame head shape: may have special cutting angles and shapes for specific types of machining operations.

Flat file: with a flat head shape, it is suitable for trimming uneven parts of teeth or workpiece surfaces.

Round files: the head has a rounded shape and is suitable for trimming the edges of teeth or workpieces.

Conical file: the head is conical, suitable for dressing the tip or small parts of the teeth or workpiece.

2. Difference in use

Different head types of rotary burrs have different uses due to their different shapes and characteristics.

Cylindrical rotary files: suitable for general removal of material, shaping and polishing and other processing tasks.

Spherical rotary files: particularly suitable for applications requiring smooth transitions or curved surfaces, such as curved surface finishing of molds and dies.

Shape-specific rotary files (e.g. flat files, round files, conical files): designed for specific machining needs, e.g. dental rotary burrs contain these types, which are used to trim different parts and shapes of teeth.