Feature 1Sprung insert coils create a stronger thread than the original metal. 2Ideal for restoring damaged threads, suitable for engine repair and other automotive applications for steel, cast iron and aluminium. 3They can also be used to create new stronger threads in original equipment. 4High hardness steel material, with excellent quality, exquisite workmanship, simple and durable operation. 5This thread repair kit is used for M12 to repair damaged or worn threads.Conditon: 100% Brand NewItem Type: Thread Repair KitMaterial: SteelColor: As Pictures ShownOptionalParameter:M12x1.25mm,M12x1.5mm,M12x1.75mmApplication: for car,usedforM12torepairdamagedorwornthreadsOperation Guide:1.Drill out damaged thread using correctly sized drill bit(supplied)2.Tap re-drilled hole using tap supplied3.Load coiled insert into applicator4.Screw coil into casting5.Using lug breaking tool,break off tag on insert6.Thread is repaired and ready to use. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 xThread Repair Kit1 x Manual