Milwaukee 48-17-6014 6 Inch Steel Core Bit Extension with 1-1/4-7 Threaded Shank for Diamond Wet Core Drilling in Concrete Masonry Stone and Brick

Reach Greater Depths with Professional-Grade Extension Power

The Milwaukee 48-17-6014 6-Inch Core Bit Extension is an essential industrial accessory for professional contractors who need to push their drilling capabilities beyond standard limits. Engineered from high-strength metal, this extension provides an additional 6 inches of reach, making it perfect for boring through thick concrete foundations, reinforced walls, stone pavers, and deep masonry structures. Without the right extension, even the most expensive core rigs are limited by the length of the bit; this tool ensures you can complete deep-penetration jobs efficiently without having to invest in specialized extra-long bits for every project.

Specifically designed for compatibility with the large-format Milwaukee core bit ecosystem, this extension features a precision-machined 1-1/4"-7 threaded shank. This common heavy-duty industrial threading ensures a secure, wobble-free connection that maintains high torque transfer even under the extreme loads of large-diameter coring. Whether you are installing HVAC ducting, industrial plumbing lines, or electrical conduits through high-density aggregate, this extension bit helps establish the proper depth required for a professional finish. Its robust silver metal construction is built to withstand the high vibrations and moisture associated with wet diamond coring, ensuring long-term reliability on demanding job sites.

Key Features

• Increased Reach: Extends your existing Milwaukee core bits by a full 6 inches for deep-wall and foundation applications.
• Industrial Threading: Designed specifically for large core bits featuring the heavy-duty 1-1/4 in. - 7 thread pattern.
• Heavy-Duty Construction: Manufactured from high-quality metal to handle the immense torque of industrial core rig drills.
• Precision Fit: Engineered for Milwaukee core bits to ensure perfect alignment, reducing vibration and premature wear during high-speed drilling.
• Job Site Versatility: Ideal for extending capabilities when cutting through concrete, brick, pavers, stone, and reinforced masonry.

What's Included

• (1) Milwaukee 48-17-6014 1-1/4 In. - 7 In. x 6 In. Core Bit Extension

Specifications

Pro-Tip: To prevent the extension from seizing due to high torque, moisture, and slurry buildup, always apply a thin layer of anti-seize lubricant to the threads before assembly. This simple step ensures easy removal after the job is finished and protects the precision threading of both your core bit and the extension for years of use.