Milwaukee 48-17-6008 5/8" Female to 1-1/4" Male Core Bit Adapter

Milwaukee 48-17-6008 5/8" Female to 1-1/4" Male Core Bit Adapter

The Milwaukee 5/8" Female to 1-1/4" Male Core Bit Adapter is built to bridge two common diamond core bit thread standards, letting a core bit with a 5/8" female connection thread directly onto equipment, drive shafts, or extension rods fitted with a 1-1/4" male thread. Rather than replacing an entire core bit or drive component because the threads don't match, this Milwaukee adapter lets professionals reuse existing core bits across additional core drilling setups. Because it is sized specifically for 5/8" female and 1-1/4" male core bit threads, it drops in as a direct connection point without modification, making it easy to keep a core bit fleet working across multiple drills and rigs. It is a simple, purpose-built accessory for anyone running diamond core drilling equipment on concrete, masonry, or similar job-site materials.

Key Features

• 5/8" Female Thread: Accepts diamond core bits manufactured with a standard 5/8" female thread connection.
• 1-1/4" Male Thread: Mates to core drilling equipment, drive spindles, or extension rods that use a 1-1/4" male thread pattern.
• Thread Conversion: Bridges two different core bit thread standards so a single bit can be used on more than one drive configuration.
• Core Bit Compatibility: Purpose-built for diamond core bit tooling systems used in concrete and masonry drilling.
• Single-Piece Adapter: One machined adapter handles the thread conversion, so there's no need to source a separate adapter kit.
• Job-Site Ready: Compact size makes it easy to keep on hand with a core bit set for quick thread changes in the field.
• Milwaukee Build: Engineered by Milwaukee to work reliably with Milwaukee and compatible core drilling equipment.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• Concrete and Masonry Core Drilling
• Diamond Core Bit Tooling Setups
• Core Drilling Thread Conversions
• Diamond Drilling Rigs and Handheld Core Drills
• Core Bit Fleet Standardization Across Job Sites
• Commercial and Residential Construction Projects

Why Milwaukee?

Milwaukee designs its core drilling accessories to keep professional crews working with the tools and bits they already own. This 5/8" Female to 1-1/4" Male Core Bit Adapter is a straightforward way to match core bits to different equipment threads, reducing downtime and the need to stock duplicate bits for every drive configuration. Milwaukee's core drilling lineup is built around this kind of practical compatibility, helping trade professionals get more use out of the core bits and equipment already in their trucks. For crews running diamond core drilling on the job site, it's a small accessory that adds real flexibility.