Crosstar 8Pcs Cobalt Countersink Drill Bit Set, 1/4"-3/4", 1/4" Hex Shank

Key features

• 🔩Industrial-Grade Cobalt HSSCrafted from M35 cobalt high-speed steel, these countersink drill bits offer superior strength and heat resistance, ideal for drilling through tough materials like stainless steel, carbon steel, and iron. The added cobalt coating enhances durability and extends bit life.
• 🛡️Titanium Aluminum Nitride CoatingOur drill bits are coated with Titanium Aluminum Nitride, which increases surface hardness to 94HRC and provides outstanding heat resistance. This coating ensures 10X longer lifespan than standard bits, allowing for faster cutting and consistent performance.
• 🌀Efficient Five-Flute DesignThe unique five-flute design ensures superior stability and efficient chip removal. This reduces friction and heat buildup, resulting in cleaner holes and extended bit life. Perfect for precise chamfering and countersinking in metal and wood.
• ⚙️Quick-Change Hex Shank & AdapterThe 1/4" hex shank is compatible with quick-change chucks and drills. Included quick-change adapter allows for fast and easy bit swaps without stopping your work. The secure grip prevents slipping and increases productivity.
• 🧰Complete Set with Center PunchThis 6-piece set includes the most popular sizes (1/4", 5/16", 3/8", 1/2", 5/8", 3/4") and a center punch for creating precise starter indentations. The laser-engraved sizes ensure easy identification and long-lasting readability.

Free shipping included. 30-day hassle-free returns.