THE global tunnelling industry has many challenges, both technical and financial, with the latter likely to dominate over the next few years. While many industries have adopted standard practices in order to overcome specific technical challenges, in tunnelling such a measure is not so easy to follow as every project is distinctive.

BUILDING on its reputation of being a leader in high-quality cutting tools and superior standards of customer service, Dormer has grouped its high-performance drilling, milling and threading ranges into two productivity classes to enable quick and easy customer identification of the optimum tool.