| To: | Shop Talk <shop-talk@autox.team.net> |
|---|---|
| Subject: | Re: Drill Doctor |
| From: | Rush <jdrush@enter.net> |
| Date: | Mon, 08 Jan 2007 19:37:23 -0500 |
> I would think that it might easily go thru the > heat treat layer, but maybe it doesn't for one sharpening. What heat treat layer? I don't think drill bits are made with case hardening. Jon |
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