territorialmillworks Posted December 3, 2009 Share Posted December 3, 2009 Need to punch a series of 1/4" and 3/8" square holes in 1/8" thick angle iron. Tried punching with square punch but then couldn't knock the plug out from the backside because of the thine material deforming. A round bolster was even worse. If I made a square bolster I don't think I could get it lined up with the punch and the work piece. I thought about making a handled punch and trying to do this on the power hammer.......appreciate any help..... Quote Link to comment Share on other sites More sharing options...
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