OK you can use them to rivet anything I guess. These fit commercial style air hammers or can be used in a press or with a sledge. They range from .250" to .350" in width at the rivet head and are .050" - .080" deep . These form the heads on the rivets very nicely. They are very high quality and are hard chromed to last a lifetime. These units are Boeing surplus items . They are aerospace quality and have been used but are in excellent/ like new condition. I will sell an assortment of 5 for $25 delivered if you are interested. I spent the better part of two days digging through the lot of rivetting heads at the Boeing Surplus Sale and these are the best available .
