Whats the actual difference between a tire lever and a tire iron, considering both tools are used for removing tires from rims and seem to serve the same purpose? Are they truly interchangeable, or are there specific situations where one is preferred over the other? Does the material or design of the tool significantly impact its effectiveness, or is it more about personal preference? Are there any specific features or attributes that set one tool apart from the other, or is it simply a matter of semantics and branding? Can someone provide a clear, concise explanation of the distinction between these two tools, and explain why manufacturers continue to produce and market both options if they appear to be functionally equivalent?