10PCS Masonry Drill Bits Set, 3/ 16"-5/ 16"Drill Bit Set For Concrete And Tile With Drill Bit Tungsten Carbide Tip, Concrete Drill Bit Set For Tile Glass Thin Metal Brick Concrete Plastic Wood

About this item Premium Material: The masonry drill bits set is made of solid alloy steel with anti-rust and fine polished treatment, and the new electroplating process can prevent the drill bit from rusting and prolong the life of the drill bit. Inventive Design: The masonry drill bits for concrete with cemented carbide tungsten cross-heads, which is harder than ordinary drill bits, increases wear resistance, durability, and an extra long life span, so that the drill bits can be used repeatedly

Exquisite Craftsmanship: The carbide tile cement drill bits are sharper, has a double design of cross arrow and spiral groove, precise positioning, easy chip removal, decreases friction and heat for faster drilling performance, and is easy to penetrate various materials.

Convenient to Operate: 1/4"hex handle which makes the electric drill more tight and not easy to slip, making it safer to use, is tighter than the round-handled glass and tile drill bit suitable for all electric drills, hand drills, and bench drills. It fits more easily and locks into the quick-change chuck.

Wide Usages: The concrete and masonry drill bit set can be used for glass, metal, brick, tile, concrete, plastic, ceramic, tile, mirror, plant pots, wood, porcelain, brick walls, marble, thin iron plate, etc. This drill bit can be used directly without adding water. If you use water for cooling, the drill bit will last longer.