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I Forge Iron

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Yes they are still used to make holes in a rock or stone in order to use the "plug and feathers" tool to split that stone along a desired lime

Another name for them for the drill is a "star drill" which is used with a hammer. The drill is rotated a quarter turn after each hammer blow.

They can even be bought in some big box hardware stores.

SLAG.

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While the powered version is more common these days I used one by hand to drill the bolt holes in the concrete pad of the carport I was turning into my wife's spinning studio.  It was only 2000 hammer blows per bold hole as I recall.  In mining they not longer redress the cutting end in the forge but use replaceable tips---I have a bunch of those too as I use them with my screwpress to decorate flat stock.

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