Fuller 1/2 in. Countersink - You Choose the Drill Size

Fuller 1/2-in. Countersink Group

The Fuller 1/2-in. Countersink Group makes it easy to drill a pilot hole and create a clean countersink in one step. Designed for woodworking and general fastening applications, these countersinks slip directly onto a drill bit of the specified diameter, allowing you to drill the pilot hole and countersink efficiently in a single operation.

Choose the countersink based on the pilot-hole drill size you need. The 1/2-in. countersink accommodates the desired plug size while providing a consistent recess for concealing screw heads with wood plugs. For controlled and repeatable results, use a stop collar to set the countersinking depth.

Efficient Two-Step Operation in One Pass

Instead of drilling a pilot hole and then creating a separate countersink, the Fuller countersink combines both operations. Install the countersink onto the appropriate drill bit and drill the pilot hole and countersink at the same time. This streamlined setup helps save time and makes repetitive woodworking projects more efficient.

Choose Your Drill Bit Size

The Fuller 1/2-in. Countersink Group is available in several pilot-hole sizes to accommodate different fastening requirements. Select the countersink that matches the drill bit diameter required for your application.

• 1/2-in. x 1/8-in. Drill Countersink
• 1/2-in. x 9/64-in. Drill Countersink
• 1/2-in. x 5/32-in. Drill Countersink
• 1/2-in. x 11/64-in. Drill Countersink
• 1/2-in. x 3/16-in. Drill Countersink
• 1/2-in. x 13/64-in. Drill Countersink
• 1/2-in. x 7/32-in. Drill Countersink

Adjustable Countersinking Depth

Use a stop collar to control the depth of the countersink and achieve consistent results from one hole to the next. This is especially useful when preparing multiple holes for screws and wood plugs during cabinetmaking, furniture construction, trim work, and other woodworking projects.

Versatile Woodworking Accessory

These Fuller countersinks are designed to work with drill bits of the specified diameter, giving you the flexibility to choose the drill bit that best suits your project. They are a practical addition to a woodworking drill-bit collection when clean, plug-ready screw holes are required.

Note: Drill bits are sold separately. Select the countersink that corresponds to the drill bit diameter needed for your application.