Ruko step drill sp gr.14, 5.3-30.5 mm6M578407
Ruko step drill hss sp gr. 6, tialn8U269987
Ruko step drill hss tin gr. 146F067731
Ruko step drill hss gr. 3 1/4-3/4"6K129409
Ruko step drill hss tin gr. 8 7/8"4O131147
Ruko step drill hss-e sp gr. 1, 4-20 mm1F363793
Ruko step drill hss sp gr. 1, titan2J486844
Optima Stupňovitý vrták 9 STEPSX8Q1302.009.008
Fabory Sada krokových vrtáků 0/9,1,27Q960813
Ruko Step drill HSS, CBN ground,spiral fluted with split point, short design6Y333291