GoVets offers Threading & Thread Mill Inserts in the Threading & Thread Mill Inserts sub-category in the Indexable Inserts category to help customers complete their projects. On-Edge Threading Inserts are cutting tools used to create internal threads in a workpiece. They are designed to be used with a thread milling machine and are available in a variety of sizes and shapes to accommodate different thread types. Shop today to find the right On-Edge Threading Inserts for your project.