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Screwbox cutter side view
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Original condition of cutter. The external surface of the V was not honed, merely ground. Note tiny hook on the heel of the V seen in the shadow at bottom right. That caused tearing at the root diameter of the screws it cut.
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2012_0136c.jpg
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2012_0016s.jpg
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2012_0000cs.jpg
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2012_0002cs.jpg
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2012_0003cs.jpg
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