CS UnitecETN 2001 P Up to 4" 2-Speed Hand Held/Rig Mounted - Wet/Dry Concrete Core Drill - for Concrete, Brick, Block, and Stone - Made in Germany - 110V

We actually bought 2 for the Seawall company use. Into our 4th year and still running well after thousands of hours coring 4 inch holes 10 to 20 inches deep

I used this drill yesterday to drill a single 2” diameter hole for a handrail post in concrete….all good worked as expected no problem.But getting the core bit off is another story. I have an entire metal shop full of vises and wrenches of various sizes and I could not get the dam thing unscrewed. Be aware that you need 2 wrenches large enough to fit around the bit end …. I feel like the manufacturer should provide the proper tools with the drill to unscrew the bit after use. Or have designed it so the bit doesn’t jam onto the tool under normal use.

I personally haven’t used it. I bought it, paid for it and my guys use it. It’s left our shop a handful of times and they love it.

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