Countersink Drill Bits

Countersink drill bits are essential tools for creating conical recesses that allow screws to sit flush with or below the surface of a material.

These bits are typically made of high-speed steel or carbon steel and are designed to match common screw head angles, such as 82° or 90°. By combining drilling and countersinking in a single step, they enhance workflow efficiency and reduce tool changeover time.

Countersink drill bits are commonly used in woodworking, cabinetry, furniture making, and metal fabrication. They are suitable for use with handheld drills and drill presses, offering flexibility across manual and industrial applications. Many versions come with adjustable stop collars for depth control and replaceable bits for extended use.

In addition to standard countersinks, there are combination bits that include pilot hole drilling features. This allows for precise screw placement and helps eliminate guesswork during assembly.