Features High Speed Steel Material: Crafted from HSS material, these drill bits are solid, durable, and provide high hardness and wear resistance. Versatile Application: Suitable for drilling holes in wood, plastic, and aluminum, making it ideal for DIY, home, and general building/engineering use. Compact and Portable: Compact design makes it easy to carry, ensuring convenience and portability for various projects. Various Sizes Included: This set contains 100 twist drill bits in different sizes, catering to a wide range of drilling needs. Titanium Coating: The titanium coating enhances the durability and longevity of the drill bits, ensuring efficient and reliable performance. Specification: Material: high speed steel Type: titanium coated, white Titanium coated size: 1mm, 1.5mm, 2mm, 2.5mm, 3mm(10pcs each size) White size: 1mm, 1.5mm, 2mm, 2.5mm, 3mm(10pcs each size) Weight: 115 g / 4.1 oz(approx.) Package list: 50 x Titanium Coated Drill Bit 50 x white Drill Bit Package List