Serrated Masonry Drill Bit Set 7 PCS, Carbide Tipped Hex Shank Drill Bits (5/32"-3/8") for Concrete, Tile, Brick, Glass, Wood & Plastic – Professional Multi-Material Drilling Kit

The Sawtooth King Drill (also known as the Four-Flute Sawtooth Eccentric Drill) is a revolutionary multi-material drilling tool engineered for efficiently tackling a wide range of hard and brittle materials like tile, glass, metal, and concrete. Its core innovation lies in the unique serrated cutting edges and off-center tip design, which effectively minimizes chipping at the entry point, prevents bit wandering, and ensures precise starting. Constructed with an ultra-hard tungsten carbide head and a reinforced alloy steel body, it features deep spiral flutes for rapid heat dissipation and enhanced durability. The standard hex shank offers universal compatibility with electric drills or hammer drills (in drilling mode). It's the ultimate all-in-one, high-performance choice for renovation, construction, and DIY projects, suitable for dry drilling applications on ceramics, stone, brick, wood, and more.

• Versatile Serrated Drill Bit Set: This 7-piece serrated masonry drill set includes 1×5/32", 2×3/16", 2×1/4", 1×5/16", and 1×3/8" bits – covering the most used sizes for home DIY and pro projects. From small pilot holes to larger openings, the varied quantity of each serrated bit eliminates extra purchases.
• Durable Serrated Carbide Tips: Each bit features Grade YG6X tungsten carbide serrated tips, engineered to grip tough materials (concrete, tile) tightly and resist wear. The hardened steel body with anti-corrosion plating lasts even in humid environments, outperforming standard non-serrated bits that dull quickly.
• Serrated Edge + Dual Flutes for Fast Drilling: Serrated cutting edges bite into materials 40% faster than smooth tips, while dual U-shaped flutes clear debris instantly. This combo reduces heat buildup by 40%, prevents jamming, and cuts through thick concrete walls or bricks without frequent pauses.
• Universal Hex Shank with Serrated Precision: The 1/4" hex shank fits all drills/impact tools (no adapter needed). Its anti-slip design stays stable, and the balanced serrated 4-cutter tip reduces wobble by 30% – safe for brittle materials like glass/ceramic, as serrated edges distribute pressure evenly to avoid cracks.
• Organized Serrated Bit Storage: All serrated drill bits come in a crush-resistant plastic case with labeled slots, making it easy to find the right size and keep the sharp serrated edges protected from damage.