Feature:1. High-quality materials and processing, can have more efficient maintenance efficiency than most other alternatives2. Excellent choice to restore damaged threads wherever steel, iron, aluminum and metal threads are peeled off, crossed or damaged3. There is a transparent plastic box which you can store and convenient to carry4. Suitable for various types of processing machinery5. Suitable for general steel materials and non-ferrous alloys, blind hole processingSpecification:Item Type: Thread Repair Insert SetApplicable Types: Ordinary steel wire screw sleeve, self-locking typeBox Material: Transparent plasticSpecification: M4Scope of Application: Suitable for general steel materials and non-ferrous alloys, blind hole processing, suitable for various types of processing machineryAssembling process of steel wire screw socketProcess Route: (1) Drilling (2) Tapping (3) Inspection (4) Assembly (5) De-handling (6) Inspection.Package List:1 x Wrench1 x Breaker1 x Tap1 x Drill Bit1 x Hex Socket wrench20 x Screw Socket