Differences Between Drill Rod, Round Bar and Steel ...
2008-8-18 · Shaft material verse o1 Drill rod. Besides roundness what is the other big difference. I am working up a 72'belt sander. With a 3/4 to 1 horse motor shaft size is 3/4. Drill rod is meant to be post-processed and doesn't have high concentricity, OD, or straightness specs.
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