You will never throw away a broken silicone gun or a bad spark plug anymore. The silicone gun is one of the most used tools by DIYers. The silicone gun, which is a simple tool, actually has many hidden features that are unknown and not used. This is why very few people know about this engine spark plug and silicone gun feature! In this secret of silicon gun video, we showed you the hidden features of the silicon gun, blacksmithing tricks, tricks, tips and tricks. When you watch this video, you will learn how to use an old silicone gun and an old spark plug and its many useful features.