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Though I’ve built a lot of chairs, I don’t own an adze, which is used to roughly shape a plank seat so it has a buttocks-shaped depression. I also don’t own any of the typical power-tool solutions, such as an angle grinder outfitted with a special cutter for seats.

Instead, I have a scorp, which is like a drawknife that was bent around a telephone pole. It’s much slower in use compared to an adze, but it will do the job and also give your wrists and forearms a workout.

Last week I started to saddle a chair seat in a piece of hard maple, and my wrists reminded me of how sore they were going to be after 45 minutes of scorp work. So I picked up a cordless drill and a 1-1/8” Forstner bit instead.

The ersatz plan was to bore out most of the seat with the Forstner. And use the depth of each hole to contour the seat.


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