![]() ![]() First, roll pins are widely used in areas where there is likely to be vibration, such as car engines or firearms. This is useful for a couple of different reasons. Some people call it a spring pin for this exact reason. Once you hammer it in, the pin exerts a force on the inside of the hole, keeping it tightly secured. The aim is to hammer the pin into a hole of smaller diameter than the pin, so the ends are beveled to start the pin into the opening. Instead of a standard pin that's solid all the way through, a roll pin has an opening down the side or a spiral formation that allows the diameter of the pin to be compressed. ![]() ![]() They are self-fastening rods, designed to be hammered into a hole to pin together two separate parts, using tension to keep a secure join. Roll pins are versatile components that have a wide range of industrial, electrical, and mechanical purposes. Best For Gunsmithing – Tekton 18-Piece Punch Set.Best Value – Walmart Roll Drive Pin Punch Set.Best Quality – Grace Tools 12 pc Professional Steel Roll Pin Punch Set with Vinyl Pouch. ![]()
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