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Wood Magazine

How to sharpen Forstner bits

 

Bit with type, Round file
Choose your file, found for rims.

For bits with a cutting rim, chuck a round file in your drill press. At the drill's lowest speed, lightly hone the interior of the rim taking care to match the angle of the interior of the rim to the file as you turn the bit through a few quick strokes.

shim

Wood Magazine