3-1/4 Inch Diamond Core Drill Bit for Cured Concrete with Rebar, 1-1/4-7 Thread Wet Core Bit for Hard Masonry, Brick, Stone

Tackle Tough Drilling Tasks with The 3-1/4 Inch Diamond Core Drill Bits, Designed for Cured Concrete with Rebar, Hard Masonry, Brick Block, Stucco, And Stone. This Core Bit Features A 1-1/4-7 Standard Thread That Fits Most Core Drill Machines, Ensuring Stable And Reliable Performance for Heavy-Duty Applications. Crafted From High-Quality Diamond Grit, It Delivers Sharp, Consistent Cutting And A Longer Service Life, Making It A Top Choice for Professionals And Diy Enthusiasts. The Simple Operation Supports Wet Drilling for Concrete; Start At A 15° Angle, Then Move To A Vertical Position for Stable Drilling. Using Water Extends The Bit'S Life, While Dry Drilling Is Acceptable for Softer Materials. The Humanized Structure Includes Precisely Engineered Sawteeth And A Concentric Axis Design for High Efficiency And Durability. This Core Drill Bit Is Widely Used for Installing Air Conditioners, Pipes, Stair Railings, And Other Construction Or Renovation Projects. with Assembled Dimensions of 18L X 3.3W X 3.3H Inches, It Is Compact Yet Powerful. Upgrade Your Toolkit with This Reliable Diamond Core Drill Bit for Smooth, Efficient Drilling Every Time.