M00002621
New product
ISO 722:1991 Rock drilling equipment - Hollow drill steels in bar form, hexagonal and round
standard by International Organization for Standardization, 02/01/1991
In stock
Warning: Last items in stock!
Availability date: 2021-11-25
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).