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This paper deals with hole-enlarging multi-ute drilling process. In this respect, the analysis of existing structures, their advantages and disadvantages is carried out and investigated. Cutting conditions during hole-enlarging multi-ute drilling process are shown. Herein, a new design of a hole-enlarging multi-ute drilling, as a holeenlarging multi-ute drill-broaching tool from broaching-speed steel with carbide plates, and a new way of handling new tools are presented. Hole-enlarging multi-ute drillbroaching combines the features of hole-enlarging multi ute drill (in cross-section) and those of broaching tool (in longitudinal section). In so doing, it is possible to increase the quality of hole-making (size variance, surface roughness) to facilitate cutting conditions and increase durability. The results of prototypes testing are presented in the end.

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