Milwaukee 3-1/2" DIAMOND ULTRA™ Dry Core Bit

DOMINATE STRUCTURAL CONCRETE WITH THIN-KERF PRECISION

When punching 3-1/2" penetrations through reinforced concrete or dense masonry block, reducing friction is the key to maintaining productivity on high-capacity jobsites. These DIAMOND ULTRA™ Dry Core Bits are engineered with specialized thin kerf segments that slice through aggregate with significantly less resistance than standard bits. Optimized for the MX FUEL™ Core Drill, this geometry allows for up to 20% more runtime per charge, ensuring that heavy civil teams can complete more coring cycles without the downtime of battery swaps or the hazard of cords in wet environments. The 1-1/4"-7 thread provides a direct, rigid connection to the spindle, eliminating the runout and vibration common with low-quality adapters.

• / Thin kerf segment design delivers the fastest drilling speeds in concrete, brick, and block.
• / Engineered for MX FUEL™ and corded rigs to maximize tool efficiency and motor life.
• / 13" usable drilling depth allows for deep penetrations through structural slabs and foundations.
• / Premium diamond grit distribution ensures consistent cutting performance in dry applications.
• / Integrated 1-1/4"-7 thread connection for seamless, adapter-free mounting.

WHAT'S IN THE BOX

(1) 3-1/2" DIAMOND ULTRA™ Dry Core Bit (48-17-0135)