【Specifications】 Thread size: M5 x 0.8mm Thread inserts material: Stainless steel Thread tap material: HSS Drill bit material: HSS Wrench material: electrophoresis surface 【Features】 1. Designed for restoring damaged threads 2. Made of high speed steel and red color plastic handle, sturdy and durable in use 3. Suitable for steel, cast iron and aluminum 4. It can be used in daily repair, car repair, drilling machine, etc. 【How to use】 ▲ Drill out damaged thread using correctly sized drill bit(supplied) ▲ Tap re-drilled hole using tap supplied ▲ Load coiled insert into applicator ▲ Screw coil into casting ▲ Using lug breaking tool,break off tag on insert ▲ Thread is repaired and ready to use. 【Package Includes】 25 x M5 Thread inserts 1 x Lug breaking tool 1 x Installation tool 1 x M5 Thread tap 1 x 5.2mm Twist Drill bit 1 x wrench