Feature: 1. This tool combines the functions of a screw extractor and a magnetic screwdriver bit, can easily take out damaged screws or quickly grasp and drive screws in. 2. Non- serrated bit, with certain magnetic and non- properties, can firmly fix the screw to the screwdriver. 3. It is a necessary bits for woodworking, machinery manufacturing, and automobile maintenance. Upgraded High Hardness and Strong Magnetic Bit, Super Strong Magnetic Drill Bits, Strong Magnetic Screwdriver Bits, 4-Edge Drill Bit Set, Masonry Drill Bits Set, Universal Drill Bit for Brick, Multi-Function Hex Alloy Tip Concrete Drill Bit Set, for Ceramic Tile, Wall, Cement, Wood Specifications: Size: 25mm, 50mm, 65mm, 70mm, 90mm, 150mm Material: alloy steel colour: purple+black Package Contents: 2 set x Upgraded High Hardness And Strong Magnetic Bit 2 x Magnetizer(randomly colored. Cannot be chosen the specific color.) 2 x Base Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.