paprhangr Report post Posted April 9, 2015 Help. I need recommendations where to buy Quality oblong punch that will make slots 1 1/4 width x 1/4" And needs to be Sharp. Making guitar straps - adjustment strap slots. I had a bad experience with Osbourne punch came new dull. I want to punch a slot with a whack, It takes too much time to marking,punching,cut slots Quote Share this post Link to post Share on other sites