hone

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hone

1. a fine whetstone, esp for sharpening razors
2. a tool consisting of a number of fine abrasive slips held in a machine head, rotated and reciprocated to impart a smooth finish to cylinder bores, etc.

hone

[hōn]
(materials)
A fine-grit stone that is used for sharpening a cutting tool.
(mechanical engineering)
A machine for honing that consists of a holding device containing several oblong stones arranged in a circular pattern.

oilstone

A fine-grained stone used to impart a sharp edge on tools; oil is used to lubricate the rubbing surface.