Abrasive Planing Across the Grain with Higher Grit Numbers Can Reduce Finish Sanding

Abrasive planing across the grain with the same grit as along the grain of clear hard maple panels conditioned at 8 percent equilibrium moisture content requires 20 to 25 percent less power. Abrasive planing across the grain with a No. 80 grit required approximately the same power as planing along the grain with a No. 36 grit. Planing across the grain with finer grits can reduce finish sanding requirements.

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