Fuller Type X counterbore Cutting Dia 1, Length 1 3/8, Size 7/16

Fuller Type X Counterbore – 1 in. Cutting Diameter

The Fuller Type X Counterbore is designed to cut clean, flat-bottom holes in wood and plastic, making it easy to recess the heads of nails, spikes, bolts, and screws below the surface. Once the fastener is installed, the recessed hole can be filled with a wood plug for a clean, professional-looking finish.

The Type X cutter is designed for faster, deeper cutting in hardwood while providing a clean, consistent counterbore. Its 1 in. cutting diameter and 1-3/8 in. overall length make it well suited for a variety of woodworking and construction applications.

Features & Benefits

• 1 in. Cutting Diameter: Produces a wide, flat-bottom counterbore for recessed fastener heads and wood plugs.
• 1-3/8 in. Overall Length: Provides useful cutting depth for common woodworking and construction applications.
• 7/16 in. Size: Designed for use with compatible twist drill bits.
• Type X Cutter: Designed for faster and deeper cuts, particularly in hardwood.
• Clean Cutting: Creates a flat, smooth counterbore suitable for plugging and finishing.
• Adjustable Positioning: Can be positioned at any point along a compatible twist drill bit.
• Secure Two-Screw Design: Two set screws hold the counterbore securely in position during use.
• Carbon Steel Construction: Made from carbon steel and heat-treated for durability and long tool life.
• Stop Collar Compatible: Can be used with stop collars to help control drilling depth.

Ideal for Recessing Fastener Heads

This counterbore is ideal for creating the flat-bottom cavity needed to recess fastener heads beneath the surface of the material. After installation, the opening can be filled with a matching wood plug to conceal the fastener and create a clean, finished appearance.

Professional Results with a Finished Appearance

By allowing nails, spikes, bolts, and screws to be sunk below the surface, the Fuller Type X Counterbore helps create a smooth work surface that can be easily plugged and finished. The recessed cavity can also help protect the fastener head from exposure while providing a neat, nearly watertight finished area when properly plugged and sealed.

Specifications

• Type: Fuller Type X Counterbore
• Cutting Diameter: 1 in.
• Overall Length: 1-3/8 in.
• Size: 7/16 in.
• Material: Carbon Steel
• Construction: Heat-Treated
• Application: Wood and plastic
• Adjustment: Positionable along compatible twist drill bits
• Retention: Two set screws

A practical choice for clean, consistent counterbores, the Fuller Type X Counterbore combines durable heat-treated carbon steel construction with an adjustable two-set-screw design for dependable performance in woodworking, construction, and general fabrication applications.