GRENPRO Masonry Drill Bit Set 8Pcs, 5/32"-1/2" Serrated Concrete Drill Bit — Open-Box, 19% Off

【Industrial-Grade YG6X Carbide Construction】Crafted from premium YG6X carbide alloy (93HRA hardness), plus a 40Cr steel shank (50HRC hardness) for anti-bending, this masonry drill bit delivers exceptional hardness, wear resistance. The reinforced head and serrated edge prevent cracking, boost cutting efficiency, and ensure a longer lifespan, even under heavy use on concrete, brick and tile.

【Fast & Accurate Drilling】This drill bit is equipped with a eccentric cutting tip with four serrated blades, which can automatically adjust the cutting angle to reduce friction and ensure precise, clean holes; its unique cross-angle ground spear tip effectively avoids bit skating and walking, allowing it to cut through ceramic tile smoothly and rapidly with an extremely neat finish.

【Complete Versatile Drill Bit Set】This comprehensive drill bit kit comes with a complete range of practical sizes, including 5/32", 3/16", 2X 1/4", 2X 5/16", 3/8", 1/2" masonry drill bits, plus 1 pc PH1 and 1 pc PH2 screwdriver bits, covering most daily drilling and driving needs. The full set is ideal for home DIY and various professional drilling tasks, fully meeting diverse project demands.

【Universal Hex Shank for Quick Change】Designed with a standard 1/4" hex shank, this drill bit set ensures a tight and secure lock in corded, cordless, impact and bench drills, as well as quick-change chucks, effectively preventing slippage, enhancing drilling accuracy and reducing operator fatigue; it boasts wide compatibility with most general power tools and mainstream brands, enabling fast and effortless bit changes for efficient workflow.

【Wide Versatile Application】This drill bit boasts extensive application, suitable for drilling various materials including concrete, tile, glass, brick, ceramic, plastic and wood. For optimal performance and extended service life when working on high-hardness materials, you are advised to operate at a low speed with steady pressure, and adopt intermittent water cooling to keep the bit cool during use.

GRENPRO 8PCS Serrated Masonry Drill Bit Set. This GRENPRO 8-piece industrial-grade masonry drill bit set features high-performance YG6X carbide tips (93HRA) and 40Cr steel shanks (50HRC) for outstanding hardness, wear resistance and anti-bending strength. The reinforced serrated edge and eccentric four-blade design deliver fast, precise drilling, reducing friction and preventing bit wandering for clean, smooth holes on multiple materials. The kit includes sizes from 5/32" to 1/2", along with PH1 and PH2 screwdriver bits to meet diverse DIY and professional needs. Equipped with a 1/4" universal hex shank, it fits most corded, cordless and impact drills for quick, secure changes and stable operation. Suitable for concrete, tile, glass, brick, ceramic, plastic and wood, this set ensures long service life when used with low speed, steady pressure and intermittent water cooling on high-hardness materia.