Two different hole sizes, 1.6mm (1/16"), which will accommodate up to a 14 gauge wire, and 2.3mm (3/32nd"), which will fit up to a 12 gauge wire. Made of tool steel, each punch is tempered for making precision holes in soft metal. Screw down action makes holes without deforming metal.
This tool will punch through soft metals up to 14 gauge (1.5mm) thick.
Replacements for the individual piercing pins are available here.
This is one of my favorite tools. Make sure not to screw the punch down all the way or it will mar your metal and leave a small circle around your hole. Unscrew the punch all the way before removing the metal or you will pull on the punch and weaken the tool. Don't try to punch through any metal which is too "hard".
Make sure the little circle of metal removed by the punch has popped out of the tool and isn't clogging up the hole. If it doesn't drop out, screw the tool down to push that little piece of scrap through. You can then give the tool a little shake to ensure that the metal falls right out.
Screw Down Hole Punch
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Tried using other types of punches and I always come back to this one, it never fails me! If it ever breaks I will get replacement screw down posts!
One of 3 punches I have and this one I use on thicker metals around 20g-16g to punch the holes, easy to line up and see nothing bulky in your way