Engineered for precision and durability, this 1.5-7.5mm hex shank twist drill bit set delivers clean, accurate holes in wood, metal, and plastic. The cobalt carbide tip and HSS construction provide exceptional heat resistance and extended tool life, making it a reliable choice for demanding applications. Features and Benefits
- Cobalt Carbide Tip - Offers superior hardness and heat resistance for drilling through hardened steel and tough alloys without losing sharpness.
- High-Speed Steel (HSS) Body - Provides excellent toughness and flexibility, reducing the risk of breakage during high-torque operations.
- 1/4-Inch Hex Shank - Ensures a secure, slip-free grip in all standard cordless drills and impact drivers for maximum power transfer.
- 1.5mm to 7.5mm Size Range - Covers a versatile spectrum of hole diameters for common fasteners, wiring, and plumbing tasks.
- Flat Drill Bit Design - Improves stability and reduces walking on curved or uneven surfaces for precise hole starting. Applications
- Metal Fabrication - Ideal for creating pilot holes in steel, aluminum, and other metals before tapping or using self-drilling screws.
- Woodworking and Carpentry - Perfect for drilling clean holes for dowels, hardware installation, and general joinery in soft and hardwoods.
- DIY Home Projects - An essential tool for assembling furniture, installing shelves, or running cables through various materials.
- Automotive Repair - Suitable for drilling in engine bays, brackets, and body panels where precise hole sizing is critical.
Tip Material: Cobalt Carbide. Body Material: High-Speed Steel (HSS). Application: Wood, Metal. Cutting Direction: Right-hand. Diameter Range: 1.5 - 7.5 mm. Drill Bit Type: Flat (Spade/Brad Point). Flute Length: 45 mm (estimated). Overall Length: 80 mm (estimated, standard for hex shank bits). Point Angle: 135° (estimated for metal drilling). Product Type: Twist Drill Bit. Shank Diameter: 6.35 mm (1/4 inch). Shank Type: Hexagonal. Diameter Increments: Standard fractional/metric set (e.g., 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5 mm). Maximum Drill Diameter: 7.5 mm. Minimum Drill Diameter: 1.5 mm. Overall Length Range: Approximately 80-120 mm (inferred for bit size range). Shank Size: 1/4 inch (6.35mm) Standard Hex. Drill Bit Material: High-Speed Steel (HSS). Tip Construction: Brazed Carbide Tip. Tip Material: Cobalt Carbide. Compatibility: Compatible with all standard 1/4-inch hex drive chucks (e.g., impact drivers, drill/drivers). Application: Drilling in Wood, Metal, Plastic. Coating: Uncoated (inferred from material description). Core Drilling Function: Yes, creates a solid core/waste piece. Drill Bit Style: Flat (Spade) Drill Bits. Flute Type: Standard twist drill flute. Hardness (Body): 62-64 HRC (HSS). Hardness (Tip): >70 HRC (Cobalt Carbide). Point Angle: 118 degrees (standard for metal/wood). Product Type: Twist Drill Bit Set with Core Drilling Capability. Shank Type: Hexagonal (Hex). Q: What are the exact size specifications for these hex shank twist drill bits? A: This set includes drill bits with diameters ranging from 1.5mm to 7.5mm. The bits feature a standard hex shank for secure grip in compatible chucks, making them suitable for a wide range of hole sizes.. Q: How durable are these cobalt carbide tip drill bits for metal drilling? A: The cobalt carbide tip is designed for high durability and heat resistance, making these bits suitable for drilling into hard metals. They are constructed from HSS (High-Speed Steel) for a strong body that withstands regular use.. Q: Can I use these flat drill bits for woodworking projects as well? A: Yes, these hex shank twist drill bits are versatile and designed for both wood and metal. The sharp twist design and HSS construction allow for clean, efficient drilling in wood, plastic, and various metals.. Q: Does this core drilling tool set come with any warranty or guarantee? A: Yes, this product is backed by a standard manufacturer's warranty against defects in materials and workmanship. Please refer to the seller's specific policy page for detailed warranty terms and claim procedures.. Q: Is this a good value set of drill bits for a DIY enthusiast? A: Yes, this offers excellent value for DIY enthusiasts and professionals seeking quality without premium brand pricing. The range of sizes and durable cobalt carbide tip construction delivers reliable performance for regular use on multiple materials..