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- From: Lawrence London <lfljvenaura@gmail.com>
- To: machinist@lists.ibiblio.org
- Subject: [machinist] Centre drill or spot drill/
- Date: Sun, 24 Apr 2016 20:47:51 -0400
Centre drill or spot drill/
http://www.practicalmachinist.com/vb/general/centre-drill-spot-drill-317947/
- [machinist] Centre drill or spot drill/, Lawrence London, 04/24/2016
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