"I purchased this item to create an hole for some waste pipe to pass through, I was a bit concerned at first because the hole was passing through foundry brick (Accrington Brick). It went through the brick no problem which really impressed me. I would highly recommend Erbauer Diamond Core Drill Bits as a good sound buy."
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Review 2 for Erbauer Diamond Core Drill Bit 52mm x 150mm
"Firstly, the picture of this core drill is incorrect as it only has thee cutting tips not four as depicted.
Regrettably, mine now only has two left because one came off whilst cutting it's fourth hole. And it would seem there is a fracture visible on one of the remaining teeth as well.
I bought this to replace my seven year old cutter that had worn out after drilling loads of holes, but honestly, this cutter is either poor quality or faulty and doesn't compare to the one it replaced.