Specification:

30pcs Stainless Steel 1/4-20 Inch Thread Repair Insert Kit is manufactured from precision stainless steel wire for strength, wearproof and durability.
Increase connection strength and fatigue resistance due to the elasticity of wire thread inserts.
The Kit Set not only includes the wire thread inserts, but the twist drill bits, wrench, thread taps, breaking pin tool which can solve your most repair needs.
Great choice for restoring damaged threads in steel, iron, aluminum and anywhere which metal threads become stripped, crossed or damaged.

Instructions:
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

Package Included:
25 × Thread inserts
1 × Lug breaking tool
1 × Installation tool
1 × wrench
1 × Thread tap
1 × Drill bit