Perfect bound, 112 pp technical reference edition published by Atlas Copco with 14 technical articles, 14 case studies, and 36 pp of machine specifications. For senior managers, engineers and specifiers in hard rock surface drilling ventures in open pits, quarries and construction. Individual articles available for free reproduction by arrangement with the publisher ulf.linder@atlascopco.com who will update drafts and supply pictures from the Atlas Copco on-line archive.