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Old 03-21-2013, 05:01 AM
Gareth Davies Gareth Davies is offline
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Join Date: Aug 2012
Location: Staffordshire, England
Posts: 423
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Martin, get yourself a Zeus book from any good engineers merchants and it has a wealth of comparison/conversion information for drills, taps, PCD's and screw thread info.

Cheers,

Gareth
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Gareth Davies
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