ITEM NAME:25Pcs Car Engine Block Restoring Damaged Thread Repair Tool Kit M5 Auto Hel G2U9 25Pcs Car Engine Block Restoring Damaged Thread Repair Tool Kit M5 Auto Hel G2U9 Item Type: Engine Care Item Weight: 0.2kg Ideal for restoring damaged threads, suitable for engine repair and other automotive. Applications for steel, cast iron and aluminum. Can be used in daily repair, car repair, drilling machine, etc. sturdy and durable in use. Wrench: surface electrophoresis How to use: 1.Drill out damaged thread using correctly sized drill bit(supplied) 2.Tap re-drilled hole using tap supplied 3.Load coiled insert into applicator 4.Screw coil into casting 5.Using lug breaking tool,break off tag on insert 6.Thread is repaired and ready to use. colour:Red, silver Material:Carbon steel, stainless steel size:M5 * 0.8mm Package Contents: 25 x Thread inserts 1 x Lug breaking tool 1 x Installation tool 1 x wrench 1 x Thread tap 1 x Drill bit