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JFD140 08-25-2007 09:24 AM

powder nailer
i bought a ramset cobra and went to use it in my basement to nail a shelf to the foundation wall. Basically i used a 2.5 inch nail through a 3/4 inch piece of wood. I used from the lowest to the highest power charge and all of them would not drive the nail fully into the wall. About 3/4 of an inch was left to be driven with the red powder charges. Am i doing something wrong or is that the concrete is just over 60 years old and is too hard for a nail of that size? Basically im left with some small concrete blowouts in the wall from pulling nails out, and the ones i shot with red charges i cant even pull out, the heads broke off after trying so hard to get them out.

JGarth 08-25-2007 01:25 PM

Why not try shorter nails (1.5" or 2").
You already bought the expensive component(s).
Appears you are attempting to drive them a "bit" too deep for this wall.

Ryan03 08-25-2007 03:40 PM

Why not just use a hammer drill and some tapcons?
We use those ramsat guns at work to install metal framing to steel joists or to concrete..Using it to hang a shelve seems a tad extreme..

mdlbldrmatt135 09-04-2007 01:18 PM

General rule is 1.5 to 2 times the thickness of the mat'l bieng fastened for the Penetration into concrete...... I'd be using a 2" or 2 1/4" long nail.........

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