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BS 4185-14 87th Edition, December 31, 1987
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Machine Tool Components - Part 14: Method for Determination of the Pilot Diameter of 60 Degrees Centre Holes
Includes all amendments and changes through Reaffirmation Notice , October 1, 2012
Page Count:18
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Applies to certain types of centre hole described in BS 328-2. Calculations apply to work pieces which are to be machined on centres providing they satisfy specified conditions.