Kit Includes: This kit contains one High-Speed Steel (HSS) Plug Tap and one matching Carbon Steel Hex Die, ensuring you have the perfect tools for threading and rethreading tasks. The High-Speed Steel Plug Tap is designed for creating new threads or repairing damaged and jammed ones. It is highly versatile and ideal for both hand use and general machine tapping. Suitable for most materials, it works effectively in both through holes and blind holes. Plug taps are specifically designed for threading through holes. Carbon Steel Hex Die The matching Carbon Steel Hex Die is perfect for rethreading or cleaning bruised, damaged, or rusty threads. These cost-effective tools are durable and practical, they are an excellent choice for maintenance tasks in the workshop or out in the field.