4 Inch Wet Core Drill Bits, DaduoRi 4" Core Bit for Concrete, 14" D…

Rating: 10 reviews from 1 sources

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Selected Review of 10 Reviews

I have used the 2.5" version to drill through a 22" thick retaining wall enforced with rebars. The bit had no issues and still has about ⅓ ofRead full review

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