oilstone

[ oil-stohn ]

/ ˈɔɪlˌstoʊn /

a block of fine-grained stone, usually oiled, for putting the final edge on certain cutting tools by abrasion.

Origin of oilstone

First recorded in 1575–85; oil + stone

oilman, oilpaper, oilseed, oilskin, oilspot glaze, oilstone, oiltight, oily, oink, oinochoe, ointment

This mistake is sometimes made in using the oilstone, by rubbing the tool on both sides instead of on one only.

Carpentry and Woodwork |Edwin W. Foster
The face of the regulator is now placed on the ground glass after smearing it with oil and oilstone dust.

Watch and Clock Escapements |Anonymous
The handle of the tool should be grasped in the left hand, while its blade rests on a block of wood, or on the oilstone.

Wood-Carving |George Jack
Synonyms are honestone, whetstone, oilstone and sharpening stone.

Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 6 |Various

Jed whistled a few mournful bars and sharpened a chisel on an oilstone.

Shavings |Joseph C. Lincoln

oilstone

/ (ˈɔɪlˌstəʊn) /

a stone with a fine grain lubricated with oil and used for sharpening cutting tools See also whetstone