Compact size, lightweight and portable, easy carrying and saving storage space. It can be used to change the the electric drill to angle grinder and cutting machine. Mounted on an electric drill grinding, cutting tiles, wood, metal polishing etc. 2 types for you to choose, you can choose according to your demands. You can have a try. Specifications: Name: Conversion Tool Set Material: metal+plastics Type: 10mm, 6mm (optional) Package size: 150 * 100 * 100mm / 5.91 * 3.94 * 3.94in Package weight: 10mm: 130g / 4.59ounce 6mm: 125g / 4.41ounce Packing List: 1 * Conversion Tool Set