French manufacturer of professional tools, Diager has been developing for more than 60 years in its Poligny factory, nestled in the heart of the Jura, drill bits and other instruments for drilling, fastening, screwing and sawing for concrete, metal or wood. Our innovation, the constant development of our processes and the confidence we place in the skills and training of our people now satisfy professional and demanding customers in more than 70 countries.
European leader in the manufacture of drill bits for concrete, we invite you to discover the extent of our products, the wealth of our services and our know-how, based on technical innovation and real ethical values.