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3 Practical ApplicationΒΆ


Actually trying to apply the depth measurement in practice leads to a bit of a problem. The starting point must be that at which the pointed tip of the countersink just touches the stock surface. But maybe the countersink doesn’t have a point. Maybe the tip is truncated to a flat. Even with a point, if it’s over the pilot hole you just drilled, there’s no surface left there to contact.

What we need is a gauge.