Cortool Masonry Drill Bits Set for Tile, Brick, Cement, Concrete, Glass, Plastic, Cinder Block, Wood, Fully Ground with Carbide Tips and Hex Shank Quick Change (5/32"-3/8" Masonry Drill Bits 7PCS Set) Concrete Drill Bit Set & Masonry Drill Bit Set, Shockproof Hex Shank Drill Bit Set (7pcs) for Glass/Brick/Plastic/Cement/Tile, Industrial Strength Carbide Drill Bit Tip, 5/32"-3/8" Box of 7 🔥 Made of high strength 45# steel after heat treatment. It has a variety of properties such as durability, rust resistance, and new scientific spiral chip removal space design to speed up chip removal and improve work. Efficiency saves time and effort. High-quality YG8X tungsten carbide drill bit tip ensures durability and long life. Sharpened side edges maximize carbide surfact contact for faster drilling. 🔥 Fast and efficient drilling through aluminium, iron, thin metal, tiles, glass, cinder blocks, hard plastic, cement, concrete, stucco, mirrors, windows, travertine, bricks, wood and more! Includes 7pcs of 6 inch long masonry drill bits with 5 different sizes of drill bits, 5/32", 3/16", 1/4" 5/16", 3/8", suitable for home DIY and various drilling needs. 🔥 Use multifunctional carbide alloy cutter head, greatly improved hardness and toughness, and has longer service life, additional anti-skid triangle shank design, firm operation, no flashlight grip. Provides excellent stability, ensuring accurate and smooth drilling. Very suitable for hammer mode. 🔥 The masonry drill set is made of exquisite non-rusty plastic storage packaging, beautiful and exquisite, convenient for storage and carrying. Concrete drill bit set is ideal for drilling holes in concrete, brick, glass, ceramic, tile and cement. 🔥 CORTOOL ensure Masonry Drill Bits Set is quality. If you are not satisfied, please contact us immediately. Our US after-sales service team is available 24 hours a day. No risk to buy!