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It’s true. I’m telling you I’ve seen them. It’s a masonry screw with the typical triangular tip seen on all masonry drill bits. I saw them in the van of one of the utility companies here in town and was blown away. I went to Fastenal and they didn’t have them. I googled it a little bit and couldn’t find anything. Does anyone know what I’m talking about and where I can buy these things? I’m sure they’re expensive but it’s worth to me to be able to skip the pre drilling step altogether.

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    Never seen or heard of them, I don't know it could ever work, the concrete dust has to have somewhere to go and the threads will not allow that to happen. – Jack Mar 24 '18 at 20:10
  • Call the utility company. – Alaska Man Mar 24 '18 at 21:16
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you probably saw something like this

these are for metal, not masonary

enter image description here

  • Dear me such language!👵🏻👵🏻 @Joeysantos – Kris Mar 29 '18 at 2:52
  • eagle-tool.us/concrete-tool.html. It may be that they were using this tool that combines the drill and screw fastener in one tool – Kris Mar 29 '18 at 3:12

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