Why is carbide preferred for rotary files and burrs?

Carbide is preferred for rotary files and burrs primarily due to its ability to offer a longer cutting life. This attribute is significant because carbide is a very hard material that maintains its cutting edge much longer than other materials. When engaged in woodworking or metalworking tasks, tools made from carbide can withstand the stresses of cutting and abrasion effectively, reducing the frequency of tool replacement or maintenance.

This durability translates to better efficiency for woodworkers and metalworkers, as they can work continuously without needing to stop for tool changes or sharpening. While other materials may be lighter or less expensive, those attributes do not enhance the performance of the tools in terms of cutting longevity, which is crucial for professional and precise work. Therefore, the longer cutting life of carbide burrs and files makes them the material of choice in both industrial and hobbyist settings.