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BS 328-5:1983

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Drills and reamers, Specification for the dimensions of countersinks and counterbores

Specifies the dimensions of counterbores with parallel shanks and integral pilots; counterbores with Morse taper shanks and detachable pilots; countersinks with parallel shanks, and countersinks with Morse taper shanks. Appendix A shows extracts from BS 4500:Part 1 giving details of the tolerances specified and Appendix B gives details of counterbores with cutting diameters designated in inches.

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Pages: 16

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Pages: 16

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BS 328-5:1983

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