Masonry Drill Bits Set, Drill bits for Tile, Brick, Cement, Glass, 12Pcs Concrete Drill Bit Set, Size 1/8",5/32",3/16"x2,1/4"x4,5/16"x2,3/8",1/2", Carbide Drill Bits Tip MULTI-PURPOSE SET The Cortool 12-Piece Masonry Drill Bit Set is designed to handle diverse drilling tasks, making it suitable for materials like glass, brick, plastic, cement, wood, and tile. With a variety of 10 sizes (1/8", 5/32", 3/16"x2, 1/4"x4, 5/16"x2, 3/8", and 1/2"), this set equips you with the right tool for virtually any project. SUPERIOR PERFORMANCE Crafted with premium YG8 tungsten steel alloy tips, these drill bits offer reduced friction, enhanced accuracy, and exceptional resistance to wear, ensuring optimal drilling efficiency. USER-FRIENDLY DESIGN Compatible with various drilling tools, including electric drills, hand drills, and bench drills, these bits feature a double U-shaped groove for efficient dust removal and a 3-flats shank for secure and stable attachment. PRECISE AND SAFE DRILLING For best results when drilling tough materials, maintain a 90° angle to the surface and apply water or coolant to extend the bit's lifespan. To avoid damage, drill slowly and avoid abrupt contact with the work surface. Steady, controlled drilling ensures both accuracy and safety. BUILT TO LAST Engineered for durability, these masonry drill bits can withstand demanding tasks when used correctly. Designed for metals softer than 38 HRC, they are not intended for hardened or quenched metals. Proper care guarantees long-lasting performance.