10 Best Drill Bit Sets 2026 in the United States

The BOSCH CO21B 21-piece drill bit set is designed mainly for metal drilling tasks, especially tough materials like stainless steel, cast iron, titanium, and aluminum. These bits are made from cobalt M42 alloy, which includes 8% cobalt, making them very durable and resistant to heat — this means they can last up to 10 times longer than standard bits and handle long drilling sessions without losing effectiveness. The set covers a good range of sizes from very small (1/16 inch) to larger holes (up to 1/2 inch), making it versatile for various projects.

The DEWALT Drill Bit Set (DWA1181) is a versatile 21-piece set suitable for general-purpose drilling in various materials, including metal, wood, plastic, PVC, and fiberglass. The bits are black oxide coated, which helps to resist corrosion and extend the lifespan of the bits, making them durable. The 135-degree split point design allows for easy drilling on contact, which helps prevent the bits from slipping on hard surfaces.

The DEWALT Screwdriver Bit Set / Drill Bit Set, 100-Piece (DWA2FTS100) is quite comprehensive, offering a variety of bits for different tasks. The set is made from metal, which ensures durability, and includes a polished finish that adds to its longevity. The size range is quite varied, catering to a broad spectrum of drilling and screwdriving needs. This makes it suitable for both home improvement enthusiasts and professional tradesmen who require a versatile set for various applications.