Features Titanium Plated Efficiency: The titanium plated design enhances durability and provides superior cutting performance for thin metals, ensuring precise holes every time Nickel Plated Strength: Engineered for masonry, the nickel plated bits effortlessly drill through concrete, brick, and walls, making tough projects manageable Versatile Woodworking Use: Featuring a 3-point spiral design, these bits are perfect for creating clean holes in both hard and soft woods, as well as plastics Rapid Cutting Action: Designed for speed, these bits significantly reduce cutting time, boosting productivity and allowing you to complete projects faster Universal Compatibility: This set includes various sizes, making it compatible with most electric and bench drills for versatile use in any workshop Features: 1、Titanium Plated Twist Bit: The titanium plated twist bit is mainly used to drill holes in relatively thin metals. 2、Nickel Plated Masonry Bit: The nickel plated masonry bit is suitable for drilling holes in concrete foundations, walls and brick walls. 3、Woodworking Bit: This 3 point spiral bit is widely used for drilling holes in hard or soft woods and plastics. 4、Fast Cutting: This twist drill is extremely and makes cutting faster, increasing your productivity and saving time. 5、Wide Applicability: This twist drill is available in universal sizes and is suitable for most electric and bench drills. Specification: Item Type: Twist Drill Bit Material: Titanium plated nickel plated alloy steel high speed steel Twist Drill Bit: Specification: 2mm / 0.08in , m / 0.12in, 4mm / 0.16in , 5mm / 0.2in , 6mm / 0.24in , 8mm / 0.31in Materials to be drilled: Thin iron aluminium plastic wood etc. Construction Drill Bit: Specification: 4mm / 0.16in , 5mm / 0.2in , 6mm / 0.24in , 8mm / 0.31in, 10mm / 0.39in Materials to be drilled: ,Brick wall concrete cement stone etc. Woodworking Drill Bit: Specification: 4mm / 0.16in , 5mm / 0.2in , 6mm / 0.24in, 8mm / 0.31in, 10mm / 0.39in Materials to be drilled: Solid wood particle board plywood etc. Package List: 16 x Twist Drill Bit 1 x Storage Box Package List 16 x Twist Drill Bit 1 x Storage Box