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Re: [] Drill question:
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USnavy
Feb 1, 2010, 8:43 AM
Views: 20741
Registered: Nov 6, 2007
Posts: 2667
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The ONLY option is a hand drill or rotary hammer drill. In hard rock you would be lucky to get one hole per battery with that drill. Its more likely you would get one hole per two battery's. Its also a safety issue using drills like that. When you use a cordless drill on hard rock the hole you drill takes the form of a "S" more then a straight line. Consequently, the bolt can fail to expand properly which could result in a low pull-out strength. I have been able to successfully replicate such circumstances in test using a heavy duty 36v cordless drill vise a hammer drill.
(This post was edited by USnavy on Feb 1, 2010, 8:44 AM)
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Edit Log:
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Post edited by USnavy
() on Feb 1, 2010, 8:43 AM
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Post edited by USnavy
() on Feb 1, 2010, 8:44 AM
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