Codes & Standards - Purchase
ISO 722:1991
Rock drilling equipment -- Hollow drill steels in bar form, hexagonal and round
SKU: iso_004954_101011
Published by ISO
Publication Year 1991
3 Edition
2 pages
Product Details
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).