5PCS Adjustable Countersink Drill Bit Set – 90° Carbide Tipped (8mm Shank)

Take your woodworking projects to the next level with this professional 5-piece adjustable countersink drill bit set. Designed for clean, precise pilot holes and perfectly chamfered screw seats, this kit delivers accuracy, durability, and efficiency in every cut.

🔩 5 Most-Used Sizes Included

Set includes drill sizes:
2.8mm • 3.0mm • 3.2mm • 3.5mm • 4.0mm

Ideal for a wide range of wood screws and woodworking applications.

🪵 Perfect for Woodworking

Create clean pilot holes and smooth 90° countersinks in one step. Ensures screws sit flush with the surface — no splitting, no rough edges.

Perfect for:
• Hardwood
• Softwood
• MDF
• Plywood
• Furniture assembly
• Cabinet making

⚙️ Adjustable Depth Stop

Built-in adjustable depth stop allows consistent drilling depth and uniform screw placement. Quick and easy to set for professional results every time.

💎 Carbide-Tipped Precision

High-quality carbide cutting edges provide sharp, clean cuts with long-lasting durability and reduced wear.

🔧 Universal 8mm Shank

Compatible with most standard drills, drill presses, and quick-change systems. Designed for stability and smooth operation.

Accurate, durable, and built for serious woodworking — this adjustable countersink bit set is an essential upgrade for any workshop or DIY toolbox.