6 Pcs Countersink Drill Bit 1/4 Inch Hex Shank 5 Flute 90 Degree Chamfering Countersink Drill Bit Set 12mm 16mm 19mm Counter Sink Drill Bits for Wood Metal Countersink Drill Bit Set

• 🔩 【High Carbon Steel Countersink Drill Bit Set】：This countersink drill bit set is made from durable high carbon steel with black oxide surface treatment. Overall high-frequency quenching improves hardness and wear resistance, ensuring stable performance for woodworking and DIY projects.
• 📐 【3 Popular Sizes with 1/4 Inch Hex Shank】：Includes 12mm, 16mm and 19mm countersink bits, covering most common countersunk drill bit needs. The 1/4 inch (6.35mm) hex shank fits standard drills and quick-change systems securely, reducing slippage during use.
• 🌀 【5-Flute 90 Degree Chamfer Design】：The 5-flute 90° chamfering structure allows smooth, clean countersinking with reduced vibration. Ideal for creating neat screw seats and flush finishes when using wood drill bits or countersink wood drill bit applications.
• 🪵 【Designed for Wood & Soft Materials】：Perfect for wood countersink drill bit set use on wood boards, plywood, MDF, particle board and plastic sheets. Also suitable for soft metal trims such as aluminium. Not suitable for hard metals such as steel or stainless steel.
• 🛠️ 【Ideal for Woodworkers & DIY Installations】：Widely used by carpenters, furniture makers, decorators and DIY users. Ideal for pre-drilling and countersinking in installation projects where screw heads must sit flush or hidden, improving both appearance and safety.

Product description Specification : Material: High Carbon Steel Color：Black Size：12mm/16mm/19mm Package includes: 6 Pcs countersink drill bit Features： This countersink drill bit set is designed for precise chamfering and pre-drilling in woodworking, furniture making and DIY installation projects. Manufactured from high carbon steel and treated with overall high-frequency heat quenching, these countersink bits deliver reliable hardness and durability for repeated use. The set includes 12mm, 16mm and 19mm countersunk drill bits, making it a versatile choice for common woodworking tasks. The 1/4 inch hex shank ensures compatibility with most electric drills and drivers, allowing quick bit changes and stable operation. The 5-flute 90 degree countersink design helps remove material smoothly, producing clean and professional countersunk holes. This wood countersink drill bit set is ideal for use on wood, plywood, fibreboard, particle board and plastic. It can also be used on soft metal materials such as aluminium, making it suitable for light metal trims. It is not recommended for hard metals. Whether you are a professional carpenter, furniture manufacturer, model maker or DIY enthusiast, this drill countersink bit set is perfect for creating flush screw finishes in cabinets, shelves, fittings and assembly projects. A practical and essential addition to any woodworking or home improvement toolkit. Note: Due to manual measurement, the size and weight may have a certain error. Due to the difference between different monitors, there may be a slight color difference existed.