Hilti's DD 350 and DD 500 Coring Systems incorporate water-cooled, high-frequency 1,000-Hz brushless motors rated at 3,600 and 5,500 watts.
- Equipped with 10-speed electronic gearing
- Deliver constant power output over the entire diameter range and allow speed to be adjusted while the motor is running
- Built-in Iron Boost function provides extra performance for coring through rebar
- Can core in diameters up to 24 in.using H2S and H6S line core bits
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