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ISO 722:1991
ISO 722:1991 Rock drilling equipment - Hollow drill steels in bar form, hexagonal and round
standard by International Organization for Standardization, 02/01/1991
Reduced price!
M00057896
New product
Full Description
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).
