Borehole widening backreamer - GIF

Borehole widening backreamer.

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I thought they typically pull a pipe or conduit in behind the reamer. If not there is a good possibility the bore will collapse after the reamer is pulled through.

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Originally Posted by hemmjo

I thought they typically pull a pipe or conduit in behind the reamer. If not there is a good possibility the bore will collapse after the reamer is pulled through.

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If not, then they would at least have a swivel and a cable attached to the back eye on the reamer. I've recently made a few reamers and pipe pullers for a local contractor. He says you never want to leave a blank bore hole if it can at all be avoided

:thumbsup: