Check the listing for details. Prototype Insert and Thread Repair Tool Kit AVK2293 In Box. Condition: Used. Listed at 120.00 USD. The Prototype Insert and Thread Repair Tool Kit AVK2293 from AVK Industrial Products is a comprehensive set of tools designed for metalworking applications. This kit includes essential tools for repairing and creating threads, making it ideal for professionals in the CNC metalworking industry. The tools are compact and well-organized in the box, ensuring that they are easily accessible and well-maintained for use in various projects. With this kit, users can effectively repair and create precise threads in their metalworking tasks.