![Specification for percussive rock-drilling bits, rods and stems : [metric units]. Part 1, Taper fitting detachable bits and rods](/img/books.png)
Specification for percussive rock-drilling bits, rods and stems : [metric units]. Part 1, Taper fitting detachable bits and rods by British Standards Institution. ISBN 0580054276. Published by B.S.I in 1969. Publication and catalogue information, links to buy online and reader comments.