Indexable chamfer mills create front or back chamfers, v-cuts, and undercuts. They are also used to prepare workpieces for deburring or edge welding. Their shank mounts to a milling machine and their body holds replaceable, multi-edged cutting inserts at a 45° chamfer angle. The inserts can be rotated (indexed) to expose a fresh cutting edge when the old one dulls. They can be replaced with new inserts of the same type or different types without removing the chamfer mill from the machine. Indexable milling tools require fewer tool changes than solid tools in high-volume metalworking and fabrication applications with high speeds, high feeds, and difficult-to-machine materials.