Metalcutting Corp. blog looks at honing and lapping

Both are used to achieve a smooth surface and precision dimensions on metal parts, writes MC's Joshua Jablons. "Both are usually performed at the end of the manufacturing process to remove a very small amount of material or finesse the finish on a part. The difference between honing and lapping begins to be revealed if we look at where on a part each process is performed: While honing is used where parts need a precise inside diameter, lapping is performed on an outside flat surface. And when we look at what each process is, the distinctions between the two are plain to see."