![Specification for percussive rock-drilling bits, rods and stems; [metric units]. Part 2, Integral stems](/img/books.png)
Specification for percussive rock-drilling bits, rods and stems; [metric units]. Part 2, Integral stems by British Standards Institution. ISBN 0580054373. Published by B.S.I in 1969. Publication and catalogue information, links to buy online and reader comments.