Parts List: 7 × Drill Bit Highlight description: Good Workmanship: Made of Good to ensure durability and long life. The sides maximize the contact speed of the cemented carbide surface, thus speeding up the drilling speed. Rich in Variety: Equipped with 6 different drill sizes, suitable for home DIY and various drilling needs. Multiple Styles: It has a variety of styles, such as durability, rust resistance and excellent wear resistance, to keep compatible with sharp for a long time, making drilling easier, less effort and with minimal working pressure. Easy to Install and Use: Can be installed and used, cordless electric drill universal, bench, electric drill and hand drill. The drilling speed of multiple drill bits should be slow, especially at the beginning of drilling. The larger the diameter, the slower the speed required. Increased Safety: Good stable performance reduce the risk of accidents during drilling and ensure the safety of operators. Detailed description: Description: The carefully crafted steel and this set is easy to assemble with most drill brands. It has a tooth design with precise and smooth holes, high precision, impact and wear resistance. Key Feature: It is available in a variety of styles to stay compatible with sharp for a long time, making drilling easier, less effort, and with minimal working pressure. Cordless electric drill universal, table, electric drill and hand drill. Specification: Textures: Carbon Steel + Alloy Size: 16cm 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 differences due to manual measurement. Good Workmanship: Made of Good to ensure durability and long life. The sides maximize the contact speed of the cemented carbide surface, thus speeding up the drilling speed. Rich in Variety: Equipped with 6 different drill sizes, suitable for home DIY and various drilling needs. Multiple Styles: It has a variety of styles, such as durability, rust resistance and excellent wear resistance, to keep compatible with sharp for a long time, making drilling easier, less effort and with minimal working pressure. Easy to Install and Use: Can be installed and used, cordless electric drill universal, bench, electric drill and hand drill. The drilling speed of multiple drill bits should be slow, especially at the beginning of drilling. The larger the diameter, the slower the speed required. Increased Safety: Good stable performance reduce the risk of accidents during drilling and ensure the safety of operators.