1. This is a functional kit and provides a much more effective repair than most other alternatives. 2. Suitable for processing common steel materials and non-ferrous alloys, blind hole processing. 3. Great choice for restoring damaged wires wherever steel, iron, aluminum and metal wires are loosened, crossed or damaged. 4. Practical M7 thread repair kit, suitable for different types of processing machines. 5. Come with a transparent plastic box, you can store tools and convenient to carry. Specification: Condition: 100% Brand New Item Type: Thread Repair Kit. Material: Metal Box material: transparent plastic Color: as shown in the picture Weight: about 140g/4.9oz Applicable types: ordinary steel wire screw sleeve, self-locking type Specification: M7 Scope of application : Suitable for general steel materials and non-ferrous alloys, blind hole processing, suitable for various types of processing machines Steel wire screw bushing assembly process Process route: (1) Drilling ( 2) Tapping (3) Inspection (4) Assembly (5) Dismantling (6) Inspection Package list: 1 wrench1 x circuit breaker1 x screw tap1 x drill bit1 x hex socket wrench20 threaded inserts.