Features:Suitable for engine repair and other automotive applications, for restoring the damaged threads.25pc thread repair kit including thread inserts, drill bit, thread tap, insert installation, lug breaking tool, allow you have smooth repairing experience.Applications for steel, cast iron and aluminum.Is a practical and handy tool, can be used in daily repair, car repair, drilling machine, etc.Made of high quality material, sturdy and durable in use.Specifications:Thread inserts material: stainless steelThread tap and the drill material: HSSWrench: surface electrophoresisColor: as shownThread size: M6 X 1 X 8mmScope of application: machineWeight: 240gHow to use: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.Package included:20 x Thread inserts1 x Lug breaking tool1 x Installation tool1 x wrench1 x Thread tap1 x Drill bit.