Milwaukee 1-1/4″-7 x 12″ Core Bit Extension

REACH DEEPER INTO STRUCTURAL SLABS AND REINFORCED CONCRETE

When you’re boring through thick foundations or multi-layer structural masonry, standard bit lengths often fall short of the required depth. This 12-inch extension is engineered for the high-torque environment of heavy civil coring operations, providing the necessary reach without compromising the integrity of the drill string. Whether you’re running an MX FUEL Core Rig or a stationary large-format drill, this extension ensures you can penetrate deep slabs for utility pass-throughs or structural testing. Maintaining thread integrity is critical in these high-stress applications, making the use of anti-seize lubricant essential for long-term tool life and easy bit changes on the jobsite.

• / 12-inch extension length provides the necessary depth for thick-slab coring and foundation work.
• / Industry-standard 1-1/4″-7 threads ensure a secure, high-torque connection between the rig and the bit.
• / Precision-machined steel construction maintains concentricity to reduce vibration during deep bores.
• / Optimized for use with Milwaukee core bits to ensure seamless thread engagement and maximum durability.