A drill bit includes a plurality of continuous segments impregnated with diamond that are each mounted to form a corresponding blade. The regions between the blades define a plurality of fluid passages on the bit face. The blades extend radially outwardly to the gage. The continuous segments may be either...http://www.google.es/patents/US8118119?utm_source=gb-gplus-sharePatente US8118119 - Impregnated rotary bit
