Feature:1. Function: Replaces OTC 7402 and 202817 metric modules. Instantly save, repair and restore broken threads. Quickly restore threads to near original condition.2. Convenient Using: From 11 or 4 inch to 5 inch OD, just tighten the tool slightly on the good threads, then back off over the damaged thread area to restore the threads.3. Durable Materials: The outside thread chaser is made of superior CNC machined aircraft grade billet aluminum with silver anodized finish, good rigidity and durability, high accuracy and hardness.4. Complete Kit: Comes with 9 pieces parts, including replaceable V pads and dies. Complete with 6pcs No.216884 Standard dies threads per inch, 4 5 6 7 71 or 2 8 9 10 11 111 or 2 12 14 16 18 20 and 24.5. High Performance: Operate without without the use of expensive thread cutting equipment. The die cast alloy V pads will not damage the threads. V pads and dies can be replaced when worn out.Specification:Item Type: External Thread Repair ToolMaterial: AluminumFunction: Replaces OTC 7402 and 202817 metric modules. Instantly save, repair and restore broken threads. Quickly restore threads to near original condition.Application: From approx. 1-1 or 4 inch to 5 inch OD (3.2-12.7cm).Package List:1 x External Thread Repair Tool Kit (9PCS)