Core drilling can be a demanding job, especially when working through reinforced concrete, requiring a balance of drilling speed, control, and safety. The Hilti DD 110-U-22 cordless coring drill is designed to make this process more manageable, with features such as a quick-connect fitting for water injection and a small viewing window to ensure water flow.
The drill is set up for both wet and dry coring applications, and a dust extractor can be directly connected to the side handle for dry applications. Hilti recommends their DD-WMS Water Management System for the best results.
Key Features and Highlights
The Hilti DD 110-U-22 features an Intelligent Coring Guide, which actively tracks coring progress and the amount of pressure being applied to the core barrel, maintaining optimal speed and preventing accidental damage to the bit. This system gives professionals a significant advantage, improving efficiency and safety.
The drill also comes with an Electronic Starting Aid, a soft-start mode that drops the power level to 10% and then accelerates to full power, providing more control during the coring process. This mode can be switched off once the core is started, and drilling can resume.
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Rebar Boost and Tool-Free Collet
The Rebar Boost mode gives the DD 110-U-22 extra torque when the core bit encounters reinforcing steel inside concrete. This mode can be activated during stand-guided operation to help the bit cut through the rebar more efficiently and then switched off to extend the service life of the bit and save battery power.
The tool-free collet makes swapping out core barrels easier, allowing professionals to change compatible core barrels without a separate wrench or special tool. The collet can be locked down by twisting it to the left, making setup simple and minimizing the need for extra tools.
Core Bits and Assisted Core Extraction
The DD 110-U-22 accepts core bits from 5/16 to 5 1/4 inches, providing flexibility for different applications. Hilti recommends pairing the drill with their SPX-A Speed core bits, designed for concrete and brick applications, with a focus on faster drilling and improved battery efficiency.
The Assisted Core Extraction feature uses an oscillating function to help shake loose stuck concrete cores after drilling, making core removal easier and reducing the time spent on this task. This feature can help professionals get back to drilling sooner.
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Safety Features and Pricing
The DD 110-U-22 features Active Torque Control (ATC) technology, which automatically halts the core barrel rotation if a bind-up is detected, reducing the risk of injury. This safety feature is especially important for professionals who regularly drill into concrete or masonry.
The Hilti DD 110-U-22 retails for $2,349 as a bare tool or $71.50 per month with Hilti’s Fleet Pricing program. The drill is powered by a Hilti Nuron B-22 battery and has a barrel diameter range of 15/32 – 5 3/16 in.
For contractors who regularly handle concrete and masonry installations, the DD 110-U-22’s combination of drilling assistance, convenience, and safety features makes it a compelling option to consider. However, for occasional or smaller holes, the specialized features may be more than needed. The Hilti DD 110-U-22 is a versatile tool that can be used in a variety of applications, and its features make it an attractive choice for professionals in the construction industry.
The drill’s ability to handle both wet and dry coring applications, along with its Rebar Boost mode and Assisted Core Extraction feature, make it a valuable asset for any contractor. The Hilti DD 110-U-22 is a reliable and efficient tool that can help professionals complete their work safely and effectively.