Superior Material Construction: Crafted from top-grade carbon steel, this countersink pilot drill boasts exceptional durability and resistance to wear. Its robust composition ensures long-lasting performance in various drilling tasks. Precision Drilling with Adjustable Depth: Equipped with a depth stop, this drill countersink prevents over-penetration, enhancing work efficiency. Easily adjust the countersink depth to accommodate various screw lengths, ensuring precise and clean results every time. Efficient Chip Removal: Designed with a spiral flute, this wood drill bit efficiently ejects chips, preventing clogging and residue build-up. This feature ensures a smoother drilling experience and prolongs the life of the bit by reducing friction and heat. Punch Tool Included: Complement your drilling with a steel punch, designed for durability and ease of use. The punch features a side ejection mechanism to prevent blockages and a knurled handle for a secure, comfortable grip. Versatile Application: Ideal for both amateur and professional woodworking projects, this drill bit set is perfect for creating countersink holes and opening passages in wood, as well as drilling into plastic with aluminum screws for a clean, finish. Color: Orange Material: Metal Package Contents: 5 x drill bits (2.8/3/3.2/3.5/4mm) 1 x hole punch 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.