Features Improve Efficiency: Achieve seamless drilling and countersinking in one go, significantly boosting your work productivity Convenient Storage Box: Comes with a portable storage box for easy transport and organization, keeping your drill bits clean and accessible Enhanced Chip Removal: Features deep chip grooves that effectively remove debris, reducing friction and heat for a faster, cooler drilling process Versatile 5-Piece Set: Includes 5 drill bits of varying sizes to accommodate a wide range of projects, ensuring you have the right tool for every task Easy Installation: Designed with a round shank for quick and hassle-free installation, making it the perfect replacement for worn or damaged bits Features: 1、Improve Efficiency: With the help of these drill bits, drilling and countersinking can complete at one time to improve work efficiency. 2、Easy to Carry: This drill bit set is equipped with a storage box for easy carrying and helps keep the drill clean. 3、Deep Chip Groove: Deepening the chip groove helps to remove chips and debris from the tap, reducing friction and heat, thus enabling a faster and cooler drilling proc. 4、5Pcs: There are 5 pieces drill bits in this package of different sizes for you to meet different needs, you can use them at will. 5、Ideal Replacement: These round shank drill bits can be easily installed, ideal replacement for the old and damaged parts. Specification: Item Type: Countersink Drill Bit Set Material: Alloy Steel Package List: 5 x Countersink Drill Bit 5 x Wrench 5 x Storage Tube Package List 5 x Countersink Drill Bit 5 x Wrench 5 x Storage Tube