1、Made of material, sturdy and durable in use 2、Ideal for restoring damaged threads, suitable for engine repair and other automotive 3、Can be used in daily repair, car repair, drilling machine, etc 4、Applications for steel, cast iron and aluminum 5、Easy to install and disassemble, high strength, long life Features: 1. Made of material, sturdy and durable in use. 2. Ideal for restoring damaged threads, suitable for engine repair and other automotive. 3. Can be used in daily repair, car repair, drilling machine, etc. 4. Applications for steel, cast iron and aluminum. 5. Easy to install and disassemble, high strength, long life. Specification: Condition: Material: 304 Stainless steel Color: As Pictures Shown Model: M3 Weight: Approx.133g/4.7oz Package list: 20 x M3*0.5mm*2d Thread Inserts 1 x Drill Bit 1 x Thread Tap 1 x Installation Tool 1 x Lug Breaking Tool Note: 1. Please allow 0~1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.