🔧 2026 Sale — Over 14,200 Sold! ⚙️ Semi-Automatic Countersink Drill Bits Set

FEATURES

PROFESSIONAL SEMI-AUTOMATIC COUNTERSINK DRILL - Engineered for professional craftsmen who demand precision and speed, this countersink bit ensures consistent results across all woodworking projects with ease.

SEAMLESS TOOL INTEGRATION - The universal hex shank ensures a secure fit without slipping, while the ergonomic body provides a comfortable grip during long hours of fabrication.

INDUSTRIAL GRADE BUILD - Combining high-speed steel for sharp cutting and heat-treated aluminum for lightweight durability, this tool is built for the demanding environment of a workshop.

VERSATILE WOODWORKING PARTNER - From assembling high-end kitchen cabinets to building a sturdy backyard deck, this drill bit provides the same professional precision across various wood types.

RELIABLE LONG-TERM PERFORMANCE - The integrated chip clearance design prevents clogging and overheating, extending the life of the cutting edge and maintaining a clean work surface.

SPEC

Size: Total Length 110mm (4.33 inches)

Material: Aluminum Alloy and High-Speed Steel

Blade Diameter: 8mm (0.31 inches) / 10mm (0.39 inches)

Shank Diameter: 6.35mm (0.25 inches)

PACKAGE INCLUDES

1 x Semi-Automatic Countersink Drill Bits Set

NOTES

Please ensure the hex shank is fully inserted and locked into your drill before starting operation.

Always wear appropriate protective eyewear and gloves when operating high-speed rotary tools.

Avoid forcing the tool against hard metals or masonry to prevent damage to the high-speed steel blades.