Larger sizes of pipe should be held using what tool?

A chain vise is the appropriate tool for holding larger sizes of pipe due to its design and functionality. Unlike other vises or clamps, a chain vise uses a chain to grip the pipe securely, accommodating the larger diameter and weight of the piping materials. This ensures that the pipe is held firmly in place, allowing for safe and efficient cutting, welding, or fitting procedures.

The flexibility of the chain allows it to adapt to various pipe sizes and shapes, which is crucial when working with larger diameters where traditional vises might be insufficient. In contrast, tools like a pipe vise or adjustable wrench are more suited for smaller diameter pipes. A bench clamp also does not provide the same level of security or adaptability needed for larger pipes, thereby making the chain vise the most effective choice in this scenario.