Features [Efficient] This wire thread insert kit can provide a strong internal thread, which can resist heat and corrosion during installation. [Flexibility] Once assembled, their position is maintained by radial pressure between the coil and both sides of the hole. [Durable] This thread repair kit is made of precision stainless steel wire, has strength, wear resistance and durability. [Practical] Due to the elasticity of the wire thread insert, the connection strength and fatigue resistance increase. [Excellent Product] Ideal for recovering steel, iron, aluminum and any damaged metal wire that has stripped, crossed or damaged threads. Specifications: Model: M3 Material: Stainless steel. Weight: approx. 133g Package includes: 10 x wire thread inserts M3 x 0.5 x 1D. 10 x wire thread inserts M3 x 0.5 x 1.5 D. 10 x wire thread inserts M3 x 0.5 x 2D. 10 x wire thread inserts M3 x 0.5 x 2.5 D. 10 x wire thread inserts M3 x 0.5 x 3D. 1 x Twis't Drill Bits 1 x key. 1 x screw taps. 1 x Break Pin Tool Package List