Indexable turning tools are used with lathes or CNC turning machines to remove material from workpieces in order to size, shape, and add features to them. They perform like solid turning tools, but have a tool body or toolholder that accepts replaceable indexable inserts or modular heads to form a cutting edge. The inserts and heads can be exchanged for new ones of the same style or a different style that's compatible with the tool body or toolholder without removing it from the machine. Indexable turning and profiling toolholders have a shank that mounts to the machine and a cutting head that holds an indexable insert. Indexable turning inserts have multiple cutting edges and can be rotated (indexed) to expose a fresh cutting edge when the old one dulls. Indexable turning 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.