After years of hiring an outside contractors to core our existing sewer manholes to install a new sewer lines at $375 a time. I decided to shop for my own bits to core an 11” hole for the boot and 9” for the trough. I purchased a 11” and 9” from EdiamondTools and both bits did amazing! Well with the money and they have paid for there selves already!
7 years ago
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