Product is highly suitable for drilling wood products, including furniture, door hinges, and desks, among others. It's perfect for cutting wood, medium-density fiberboard, plywood, solid wood boards, and more. With multiple sizes available, it meets your various drilling needs, while the high-quality carbide material ensures product quality, making it an ideal choice for you. High-Quality Materials: Made from premium Carbide and Carbon Steel, offering excellent cutting performance, durability, and longer service life Cutting Effectiveness: In drilling operations, countersink drill bits allow the heads of screws or bolts to sink into the hole, creating a smooth and flush surface effect; This ensures that the fastener aligns with the surface without protruding, avoiding interference with other objects or causing inconvenience; Widely used for pre-drilling and installation tasks in woodworking and assembly work. Meanwhile, Forstner bits produce clean cuts without vibration during the cutting process, resulting in smooth finishes without burrs; This improves work efficiency and workpiece quality Portable Storage Case: The set comes with a hard portable storage case. When not in use, you can neatly arrange the tools back into the storage case, keeping your tools organized Widely Applicable: Countersink drill and Forstner bit sets are suitable for various fields such as furniture making, woodworking decoration, DIY projects, etc. For example, when installing drawer slides, hinges, handles, and other accessories, countersink drills and Forstner bits ensure a professional and secure completion of tasks Versatile Drill Bit Set: Includes 5 countersink bits (2.8mm, 3mm, 3.2mm, 3.5mm, 4mm) 7 Forstner bits (15mm, 20mm, 22mm, 25mm, 30mm, 32mm, 35mm)