About This

【Versatile Countersink Drill Bit Set】This set of countersink bits includes 5 different sizes - 1/4"(6 mm), 3/8"(10 mm), 1/2"(13 mm), 5/8"(16 mm), 3/4"(19 mm) with an 82-degree angle
【Save Time and Effort】With 5 flute design, countersink drill bits ensure efficient debris removal, resulting in smoother and cleaner countersinking（ensuring screws and fasteners sit flush), saving time and effort during your projects
【Quick-Change Shank】This countersink drill bit set features a 1/4" hex shank for quick drill changes,compatible with handheld drills, impact drivers, and mold grinders
【Widely Application】Our metal countersink drill bit can be used for drilling holes in medium hardness stainless steel, copper, aluminum, plywood, softwood, hardwood and fiberglass plastics.Meet all your DIY needs
【Easy to Use】For optimal results, pre-tap a pilot hole before use. Each bit is clearly marked with its dimension for quick size selection—no guesswork, even for beginners