The tools used were seven scrapers, one chisel and a piece of carborundum stone.
From the en.wikipedia.org
The wheel should be coarse and hard, therefore aluminium oxide or carborundum often are employed.
From the en.wikipedia.org
On the Mohs scale of mineral hardness, which has diamond as ten, carborundum scores nine or better.
From the economist.com
I think carborundum powder is also sold as emery powder.
From the guardian.co.uk
Burning coal or carborundum dust was tried.
From the en.wikipedia.org
One of many variants of Illegitimi non carborundum.
From the en.wikipedia.org
E.G. Acheson heated a mixture of coke and clay in 1893, and invented carborundum, or synthetic silicon carbide.
From the en.wikipedia.org
For secateurs and garden knives, you need a damp rag, a carborundum stone and oil, plus a spray can of oil for moving parts.
From the guardian.co.uk
Skip the fortune charged by the hygienist, because having your teeth murdered by what feels like a carborundum wheel isn't necessary, and can cause damage.
From the independent.co.uk
More examples
An abrasive composed of silicon carbide crystals
A very hard mixture consisting primarily of silicon carbide; it is used as an abrasive and, in powdered form, in a method of engraving invented by Henri Goetz. ...
An abrasive solution of silicon carbide, the finer grade of which is used to abrade the surface of monofilament mesh.
An combination of carbon and silicon that is used for woodworking and metalworking tools, blades, and abrasives.
Another name for silicon carbide, carborundum is a abrasive substance sometimes used to build up the surface of a metal plate. When the plate is pressed against dampened paper, the raised carborundum areas leave a craggy, relief impression on the paper. ...
A very hard, fine abrasive powder, used on collagraph plates or to grind down lithography stones.
Carborundum [ CSi, carbide of silica ]
A very hard artificial abrasive produced in an electric furnace. It is a compound of silicon and carbide. Also, the trade name for this abrasive.