1、This thread repair kit contains installation tool, thread tap, drill, wire thread inserts. 2、Perfect for restoring damaged threads, suitable for automotive repair. 3、It helps to create a stronger internal thread in soft metals and protects tapped threads against wear and damage. 4、Made of high quality stainless steel material for strength and durability. 5、Comes with a case of easy storage and carry, convenient for repair work use. Features: This thread repair kit contains installation tool, thread tap, drill, wire thread inserts. Perfect for restoring damaged threads, suitable for automotive repair. It helps to create a stronger internal thread in soft metals and protects tapped threads against wear and damage. Made of high quality stainless steel material for strength and durability. Comes with a case of easy storage and carry, convenient for repair work use. Specification: Function: Screw thread repair Type: M4*0.7 Material: 304 stainless steel Threaded Insert Size: M4*0.7*2D Threaded Insert Quantity: 20pcs Weight: 143g / 5oz (approx.) Package list: 1 * Installation Tool 1 * Tang Break Tool 1 * Screw Tap 1 * Drill Bit 20 * Threaded Inserts 1 * Packing Box