What caliber for concrete?

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Jericho941
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Re: What caliber for concrete?

Post by Jericho941 » Mon Mar 27, 2017 3:22 am

Cobar wrote:
Old Grafton wrote:I think the silver solder holding the carbide tip failed. Looks like the bit got really hot; I'm guessing the hammerdrill broke the carbide away from the bit and then the steel shank tried it's damndest to drill thru carbide, which won't happen. Unless you're sure you dug the carbide out of the hole I'd say a new bit, a new location of the hole, and less pressure on the hammerdrill, allowing the bit some lineal room to work. YMMV
+1
Agreed. Really, the art of drilling concrete takes practice. I was fortunate in that the last time I had to do that, I had a lot of government property to play with. :lol:

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