ISO-722 › Rock drilling equipment - Hollow drill steels in bar form, hexagonal and round

ISO-722 - 3RD EDITION - CURRENT


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Specifies the dimensions for seven nominal sizes. This third edition cancels and replaces the second edition (1985), which has been technically revised (addition of round drill steels and extension of the range of sizes).

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To find similar documents by classification:

73.100.30 (Equipment for drilling and mine excavation Including equipment for seabed mining Drilling equipment for the petroleum industry, see 75.180.10)

77.140.60 (Steel bars and rods)

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Document Number

ISO 722:1991

Revision Level

3RD EDITION

Status

Current

Publication Date

Feb. 15, 1991

Committee Number

ISO TC 82