Countersink Drill Bit Set with Depth Stop 4PCS

🔩 4-Piece Professional Countersink Drill Bit Set

This all-in-one set includes 4 essential countersink drill bits, an adjustable depth stop system, an L-shaped wrench, and a PH2 screwdriver bit, allowing you to drill pilot holes and create perfectly clean countersinks in a single step, making screw installation faster, smoother, and more professional-looking.

⚙️ Premium M2 HSS Construction for Clean Cutting

Made from high-speed M2 steel (HSS) with a precision helical chip design, this set delivers fast, efficient cutting performance, while the sharp edges ensure smooth countersinking and counterboring, ideal for achieving a clean 82-degree flat head screw finish commonly used in the U.S.

📏 Fully Adjustable Depth Control

Designed for maximum precision, both drilling and countersink depths can be easily adjusted using hex screws and stop collars, giving you complete control over depth accuracy for different wood types and project requirements, from fine furniture to heavy-duty woodworking.

Wide Range of Material Compatibility

Perfect for professionals and DIY users, this drill bit set works seamlessly on natural wood, MDF, plywood, particle board, engineered wood, aluminum, non-ferrous metals, and decorative materials, making it a versatile tool for virtually any drilling or woodworking project.

⚡ Pro Tip for Best Performance

For the cleanest finish and longest tool life, operate the countersink bits at a low speed of approximately 200 RPM, which helps prevent burning, ensures smooth edge finishing, and improves overall drilling precision for professional-grade results.

📦 Product Specifications

• Product Name: 4-Piece Countersink Drill Bit Set
• Material: M2 High-Speed Steel (HSS) + HCS Cutting Edges
• Included Pieces: 4 Countersink Bits + 1 L-Wrench + 1 PH2 Screwdriver Bit
• Drill Type: Adjustable Countersink + Pilot Hole Combo
• Countersink Angle: 82° (U.S. Standard Flat Head Screws)
• Adjustable Depth Range: Yes (Hex Screw + Stop Collar)
• Compatible Materials: Wood / MDF / Plywood / Particle Board / Aluminum / Soft Metals
• Recommended Speed: ~200 RPM (Low Speed Operation)
• Application: Woodworking, Furniture Assembly, DIY Projects, Professional Installation