Parts List: 1 x 1/4" Self-locking Batch Head Connecting Rod 5 x Hex Shank Spiral Drill Bit 5 x Screw Extractors Product Description: Our screw extractor tool kit can easily and quickly remove broken or rusty screws, bolts, and studs, different sizes are suitable for the most common screws or bolts of standard size. And it comes with a plastic storage box for easy storage and carrying. It is widely used in the repair and maintenance of households, home appliances, automobiles, or machines. Key Feature: Wide Compatibility: Our bolt extractors are compatible with most electric screwdrivers, impact screwdrivers, and other tools with 1/4" hex shank. With Storage Box: All screw extractors are stored in a storage box to prevent them from losing, easy to find, and also convenient for carrying outside. Specification: Product name: Screw Extractor Set Material: carbon steel Color: silver Screw extractors: 50mm/1.97 in, 61mm/2.4 in, 65mm/2.56 in, 76mm/2.99 in, 85mm/3.35 in Spiral drill bit: 56mm/2.21 in, 62mm/2.44 in, 71mm/2.8 in, 80mm/3.15 in, 92mm/3.62 in Connecting rod: 60mm/2.36 in Screw extractors specification: M3-M6, M6-M8, M8-M11, M11-M14, M14-M18 Spiral drill bit specification: 1/8", 5/32", 3/16", 1/4" and 19/64" Application: removing dented, peeled, rusted, cracked or corroded screws and bolts Note???? 1.There may be slight differences between the picture and the actual color of the commodity. We will try our best to show you the exact color. 2.Please allow slight dimension difference due to manual measurement.