What is Reddit's opinion of DRY Type 4" Diamond DRY Coring Bit - Concrete Core Drill by BLUEROCK Tools?
From 3.5 billion Reddit comments

DRY Type 4" Diamond DRY Coring Bit - Concrete Core Drill by BLUEROCK Tools

By popularity on Reddit, this product is:

#31 in Core Drill Bits

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1 review of this product found across Reddit:

I bought one of these to add HVAC to my addition. Worked great for the 3 holes I used it for, not sure how much longer it would last though.

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