Used a 2” high performance wet core bit and extension to drill through a 30" thick granite fieldstone foundation. Took all day to complete the job, mostly because of the odd working angle and didn’t have a proper water supply to flush material out the hole. Next project I will be getting the water swivel adapter, as I feel that would have greatly improved the efficiency of drilling such a deep hole.
Looking forward to the next project I get to use this for.
4 years ago
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