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.