Fuller 3/8 in. x 13/64 in. Drill Countersink

Fuller 3/8-in. x 13/64-in. Drill Countersink

The Fuller 3/8-in. x 13/64-in. Drill Countersink makes it easy to drill a pilot hole and create a clean countersink in a single operation. Designed for woodworking and general fastening applications, this countersink slips onto a compatible 3/8-in. drill bit, allowing you to prepare the hole for a wood plug without changing tools.

Drill and Countersink in One Step

Save time and simplify your drilling process by combining pilot-hole drilling and countersinking into one operation. The countersink is designed for use with a drill bit of the specified diameter and can be positioned to create a consistent recess for concealing screw heads with wood plugs.

Adjustable Drilling Depth

Use stop collars to control the depth of the countersink and achieve repeatable results from hole to hole. This makes the Fuller countersink especially useful for projects where consistent screw placement and plug installation are important.

Versatile Woodworking Accessory

The Fuller Drill Countersink is a practical addition to a woodworking drill-bit collection. It can be used for furniture construction, cabinetry, trim work, repairs, and other projects where countersunk fasteners and concealed screw holes are desired.

• Drills the pilot hole and countersink in one step
• Fits a 3/8-in. drill bit of the specified diameter
• Designed to prepare holes for wood plugs
• Use with stop collars for controlled countersink depth
• Helps create consistent, clean screw holes
• Ideal for woodworking, cabinetry, furniture, and general shop projects

Important Note

Drill bit is not included. Order the appropriate 3/8-in. drill bit separately. Use a drill bit with the specified diameter for proper fit and operation.