File:Drilling starts with center drill.jpg

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Revision as of 13:29, 17 May 2013 by Dnevil (talk | contribs) (All drilling operations should start with a center drill; this gives an accurate and clean starting point, and reduces the chance of the drill bit "walking" off center. From "Drilling" by Stan Bray, "World of Model Engineering" No 3, 1989, http://www.m...)
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Drilling_starts_with_center_drill.jpg ‎(611 × 488 pixels, file size: 50 KB, MIME type: image/jpeg)

All drilling operations should start with a center drill; this gives an accurate and clean starting point, and reduces the chance of the drill bit "walking" off center. From "Drilling" by Stan Bray, "World of Model Engineering" No 3, 1989, http://www.model-engineer.co.uk/sites/7/documents/wome-3-pt2.pdf

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current13:29, 17 May 2013Thumbnail for version as of 13:29, 17 May 2013611 × 488 (50 KB)Dnevil (talk | contribs)All drilling operations should start with a center drill; this gives an accurate and clean starting point, and reduces the chance of the drill bit "walking" off center. From "Drilling" by Stan Bray, "World of Model Engineering" No 3, 1989, http://www.m...

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