10PCS Core Drill Bits Hole Cutter Vacuum Brazed for Porcelain Marble Granite

[10PCS SET FOR MULTIPLE APPLICATIONS] This set includes 10 vacuum brazed dry drill bits, specifically designed for drilling into granite, marble, masonry, concrete, tile, glass, and hard plastic. [HIGH EFFICIENCY DRILLING] Engineered for dry use without water, these drill bits offer exceptional efficiency and performance across various materials. [OPTIMIZED FOR SPEED] for use with electric tools running at speeds of 1500 rpm or higher; the faster the speed, the better the drilling effect. [USER-FRIENDLY USAGE] Designed to minimize pressure during operation to avoid damage; perfect for both DIY enthusiasts and professionals alike. [SIZING REMINDER] Please to check your size requirements before purchasing to guarantee compatibility with your tools.You may also like E2021 Cobalt Steel Ball Nose End Mill, Long Reach, Weldon Shank, Uncoated (Bright) Finish, 30 Deg Helix, 4 Flutes, 6.5" Overall Length, 1" Cutting Diameter, 1" Shank Diameter.