Features: 1. Made of high-strength diamond-shaped steel wire with high thread strength and high wear resistance. 2. The wire screw set can be placed in the screw hole of the workpiece such as aluminum alloy to form a standard internal thread with high strength, wear resistance and high precision. 3. Typical application in high voltage switchgear, microwave communication, automotive parts, aerospace precision parts, electronic products, air equipment, radiators, etc. 4. Wire thread insert can be used as a repair tool to effectively repair threaded holes 5. All accessories are packed in a box for easy carrying and storage Specification: Condition: 100% Brand New Material: Stainless Steel Weight: Approx. 785g / 27.7oz Package List: 20pcs M3*0.5*2D 20pcs M4*0.7*2D 20pcs M5*0.8*2D 20pcs M6*1.0*2D 20pcs M8*1.25*2D 10pcs M10*1.5*2D 10pcs M12*1.75*2D 1Pcs ST3*0.5 1Pcs ST4*0.4 1Pcs ST5*0.8 1Pcs ST6*1.0 1Pcs ST8*1.25 1Pcs ST10*1.5 1Pcs ST12*1.75 7Pcs Hole Drill(M3 M4 M5 M6 M8 M10 M12 in each one) 7Pcs Installing Head(M3 M4 M5 M6 M8 M10 M12 in each one) 1Pcs Installing Handle