The Alpen 6 Piece Cobalt Drill Bit Set offers a versatile range of sizes for precision drilling in tough materials. Made from high-quality cobalt, these bits deliver outstanding durability and heat resistance. Key Features: Sizes Included: 2.00mm, 2.50mm, 3.00mm, 4.00mm, 5.00mm, 8.00mm Material: Cobalt for superior strength and heat resistance Design: Perfect for drilling into hard metals like stainless steel Application: Ideal for both professional trades and DIY projects