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Thread: Explaining the thumb test
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08-22-2006, 04:31 PM #7
[QUOTE=mparker762]I think the traditional thumb test is lightly dragging your thumb at right angles to the blade (not parallel or you'll get cut). A sharp edge will kind of catch as your thumb goes across it.[QUOTE]
So if I'm reading this right, I should do the following:
1. Lay the razor on its spine, edge pointing up.
2. Wet my thumb.
3. Drag the pad of my thumb across the edge at a 90-degree angle to the edge and a 90-degree angle to the blade. Like this cutaway view:
-----------------> (motion of thumb)
| (edge)
|
||
||| (spine)
Sorry for the bad ASCI art. It's my first attempt.
Thanks,
Josh