Heavy duty spindle on 'em and heavy time. I bought several of these in different sizes of 2", 4", 6" and 8". All of them are clearly identified as Irwins. They will last a lifetime even if the blue paint peels off. Don't worry about these clamps from Irwin C. If you've worked on wood projects, it's good to have an arsenal of tools to help when you're working alone. in different sizes to help you build something better and stronger.
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