1、High-quality materials and processing, can have more efficient maintenance efficiency than most other alternatives 2、Excellent choice to restore damaged threads wherever steel, iron, aluminum and metal threads are peeled off, crossed or damaged 3、There is a transparent plastic box which you can store and convenient to carry 4、Suitable for various types of processing machinery 5、Suitable for general steel materials and non-ferrous alloys, blind hole processing 1 x Wrench1 x Breaker1 x Tap1 x Drill Bit1 x Hex Socket wrench20 x Screw Socket 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 Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store