5PCS M35 Cobalt Countersink Drill Bit Set – 82° 5-Flute Hex Shank (1/4") for Metal, Wood & Precision Drilling with Holder

Upgrade your drilling precision with this 5-Flute M35 Cobalt Countersink Drill Bit Set (82°)—a professional-grade woodworking and metalworking tool designed for clean, smooth, and accurate countersunk holes every time. Built for durability and performance, this set is perfect for DIY enthusiasts, carpenters, and workshop pros who demand reliable results.

Crafted from premium M35 cobalt steel, these countersink bits deliver exceptional hardness, heat resistance, and long service life. The advanced material makes them ideal for tougher materials while maintaining sharp cutting edges even under heavy use.

Each bit features a precision-ground 82° five-flute design, engineered to reduce vibration and ensure stable drilling. This means cleaner finishes, less chatter, and smoother countersunk holes for screws and fasteners—perfect for achieving that professional, flush-mounted look.

This versatile set includes five commonly used sizes (1/4", 3/8", 1/2", 5/8"), neatly stored in a durable carrying box for easy organization and portability. Whether you're working in your garage, workshop, or on-site, your tools stay protected and ready to use.

Equipped with a 1/4" hex shank, these bits offer strong grip compatibility with most power drills, preventing slipping and improving drilling control. Suitable for a wide range of materials including wood, plywood, hardwood, soft steel, aluminum, copper, fiberglass, and more, this set is a true all-rounder for multiple projects.

Why You’ll Love It:

• High-strength M35 cobalt steel for durability and heat resistance
• 82° precision five-flute design for smooth, vibration-free drilling
• 5 essential sizes for versatile project use
• 1/4" hex shank for secure and stable drill compatibility
• Works on wood, metal, plastic, fiberglass, and more
• Comes with a storage box for easy organization
• Perfect for woodworking, metalworking, and DIY projects