Pipe threading tool threads the pipes of different sizes and it removes the die heads by pulling the ratchet head. Thread insert is used to replace the cracked, stripped and damaged holes in the bolts. Thread repair attachment repairs the stripped threads that are available in different types of metals. It makes the damaged threads back to its original thread size. Thread grinding is used to grind the metals and it improves the threading performance and efficiency. Thread milling is a three-axis mill, which is used for helical interpolation and it is capable of producing threads of larger sizes. A thread rolling process is used for making external threads. Other threading tools and attachments are commonly available.