25Pcs Thread Repair Insert Kit M4 with Transparent Plastic Box compatible with Processing Machinery Feature: 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 Suitable compatible with various types of processing machinery 5. Suitable compatible with general steel materials and non-ferrous alloys, blind hole processing Specification: Item Type: Thread Repair Insert Set Applicable Types: Ordinary steel wire screw sleeve, self-locking type Box Material: Transparent plastic M4 Scope of Application: Suitable compatible with general steel materials and non-ferrous alloys, blind hole processing, suitable compatible with various types of processing machinery Assembling process of steel wire screw socket Process Route: (1) Drilling (2) Tapping (3) Inspection (4) Assembly (5) De-handling (6) Inspection Package List: 1 x Wrench 1 x Breaker 1 x Tap 1 x Drill Bit 1 x Hex Socket wrench 20 x Screw Socket