Specifications: Product Name:Heavy Duty Quick Drill Bit Set Material:Carbide Size:6mm, 8mm, 10mm, 12mm Applicable Model:6.35mm/4inch Suitable for: drlling on drywall, bricks, tiles, wood, aluminum and sheet metal FEATURES RAPID DRILLING: Achieve superior drilling efficiency with advanced design, significantly reducing project time and effort. This feature ensures quick penetration through various materials, enabling faster completion of tasks for both professionals and DIY enthusiasts. ECCENTRIC DESIGN: Engineered specifically for tiles, this unique eccentric design minimizes vibration at each cutting edge, drastically lowering the risk of chipping and damage. Experience smoother, cleaner holes and extend the lifespan of your drill bits when working on delicate surfaces. PREMIUM CONSTRUCTION: Crafted from high-grade tungsten carbide, these drill bits offer exceptional hardness and unparalleled durability. This robust material ensures long-lasting performance, superior wear resistance, and the ability to tackle the toughest drilling challenges with ease. ANTI-SLIP HEX SHANK: Equipped with a hexagonal shank, this drill bit ensures a secure and grip in various chuck types without slippage. This stable connection guarantees safe operation and compatibility with a wide range of power drills, enhancing user control and precision. WIDENED SPIRALS CHIP FLUTE: Featuring an enhanced, wider spirals flute design, this bit provides dual benefits of efficient heat dissipation and superior chip removal. This prevents clogging and overheating, maintaining optimal cutting performance and significantly extending the tool's operational life. Package Includes: 1*Heavy Duty Quick Drill Bit Set 【Industrial-Grade Carbide Tips】：Precision-engineered with industrial-strength carbide for superior durability and exceptional abrasion resistance, making drilling through tough materials like glass, ceramic, cement, wood, brick, and hard plastics effortless and efficient 【Double U-Shaped Groove Design】：The innovative double U-shaped slot ensures rapid dust evacuation and faster penetration, keeping your workspace clean and reducing drill clogging for a smoother experience 【Anti-Slip Triangle Shank】：Ergonomically designed with a secure anti-slip triangle shank for a tight grip in electric, hand, or bench drills. Not recommended for use with impact drills 【Versatile Application】：Perfect for professionals and DIY enthusiasts, this drill bit set is ideal for drilling through iron, copper, aluminum, steel plate, wood, ceramic, brick, plastic, and more. For materials like glass, marble, full ceramic tiles, or granite, simply cool with water and control drilling speed for optimal results 【Comprehensive Size Range】：Includes a 4-piece drill bit set. The varying sizes allow you to start with the smallest bit and gradually work up to the desired hole size, ensuring precision and versatility for all your drilling needs