12Pcs Serrated Masonry Drill Bit Set (3-16mm) – Titanium Coated High-Speed Steel, Eccentric Flute Design for Dry Drilling Concrete, Tile, Glass, Brick & Metal – Industrial & Household Use

• 【Professional-Grade Serrated Drill Bit Set】12-piece tungsten carbide drill bits with titanium coating for enhanced durability and heat resistance. Ideal for drilling into concrete, tile, glass, brick, and metal surfaces with long-lasting sharpness.
• 【Unique 4-Flute Eccentric Design】Features precision serrated edges and aggressive spiral grooves for smooth, fast drilling performance. The innovative flute design effectively removes debris when working with tough materials.
• 【Secure Hex Shank Construction】Hexagonal shank provides maximum grip and reduces slippage during operation. Compatible with hand drills, electric drills, and bench drills for versatile use across different job sites.
• 【Multi-Material Versatility】Perfect for various applications including masonry work (concrete/brick), tile/stone installation (ceramic/glass), and DIY projects (wood/plastic). Delivers clean, burr-free holes every time.
• 【Complete Professional Set】Includes 12 drill bits ranging from 3mm to 16mm (1/8" to 5/8") to handle any drilling task. Comes with a durable storage case for easy organization and transportation to job sites.

Engineered for professional contractors and serious DIYers, our 12-piece serrated masonry drill bit set delivers unmatched performance across multiple materials. Key Features & Benefits: Professional Performance Laser-calibrated grooves remove debris; 135° split point prevents walking for clean starts. Advanced Serrated Cutting 4-flute eccentric design with sawtooth edges + titanium coating reduces friction 40% for faster drilling in concrete, brick, and tile. Industrial Durability YG8X tungsten carbide (HRC 90+) with 1100°F heat-resistant titanium coating prevents wear. Multi-Material Use For: Masonry: Concrete/brick/cinder block Tile/Stone: Ceramic/porcelain/marble DIY: Wood/plastic/thin metal (<5mm) Pro Usage Tips: For glass/tile: Use water cooling and maintain 800-1500 RPM Start with smallest bit when drilling hard surfaces Keep drill perpendicular (90°) to work surface Clear debris regularly for optimal performance Package Includes: 12-piece drill bit set 1 X 1/8"-3mm 1 X 5/32"-4mm 1 X 3/16" -5MM 2 X 1/4"-6mm 2 X 5/16"-8mm 2 X 3/8"-10mm 1 X 1/2"-12mm 1 X 9/16"-14mm 1 X 5/8"-16mm