PROBEROS 7pcs Alloy Steel Drill Bits Set 3mm to 12mm for Concrete Wood 7pcs Alloy Steel Drill Bit Set 3mm to 12mm Hex Shank Carbide Concrete Drill Bits Masonry Bits  (Pack of 1)

PREMIUM ALLOY STEEL CONSTRUCTION: 7Pcs heavy duty alloy steel drill bit which delievers an efficent drilling performance and longlast service life. This twist drill bit is made of premium alloy steel material, featuring with excellent strength, durability and high impact resistance, ensuring longer service life and safe operation. EFFICIENT DRILLING PERFORMANCE: The special spiral blade on the drill it can easily remove the dirt from the hole hole being drilled. The spiral blade allows the drill bit to quickly and efficiently remove materials by lifting the debris out of the hole and creating a clean, precise hole. The spiral design also helps to prevent the bit from becoming stuck in the material being drilled. VERSATILE SIZES: This 7-piece drill bit set offers a range of sizes including 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, and 12mm, providing the flexibility to meet various drilling needs. With a standard 6.35mm (1/4") hex shank, these bits are designed for precise, efficient performance across multiple projects. WIDELY USED ON VARIOUS MATERIAL: This set of high-impact drill bits is designed for creating holes in a wide range of materials, including glass, tile, brick, cement, concrete, plastic, and wood. The robust construction and precision engineering of these drill bits ensure durability and efficient performance, no matter the task. UNIVERSAL STANDARD SHANK: This set of drill bit is universally compatible with most power tools. Ideal for hand held electric drill, stand motor-driven drilling machine and mobile ribbon type magnetism drilling machine.