Ruko step drill hss tialn gr. 7 3/8-1/2"6U876905
Ruko step drill hss tin gr. 9 7/8-1 1/8"6V897270
Ruko step drill hss tin gr. 097M708313
Ruko step drill hsse gr. 5 5/16-1"7Q833529
Ruko step drill hss sp gr. 5, titan7L346796
Ruko step drill hss tin gr. 175B405723
Ruko step drill hss gr.15H062008
Ruko step drill hss tin gr. 5 13/32-1"8W990447
Ruko step drill hss sp gr. 2, titan5H962799
Ruko step drill sp tin gr.4, 6-26,75 mm5I049333
Ruko step drill hss tialn gr.21M817314
Ruko step drill hss sp gr. 11, tialn5C365326
Ruko step drill hss tialn gr. 178Z128296
Ruko Step drill HSS, CBN ground,spiral fluted with split point, short design6Y333291
Ruko step drill hss gr. 1 3/16-1/2"2R479119
Ruko step drill hsse gr. 1 3/16-1/2"2Y236803
Ruko step drill hss sp gr. 8, tialn7U250291
Ruko step drill hsse gr. 3 1/4-3/4"3E583630
Ruko step drill hss 12-20 mm3G705815
Ruko step drill hss gr. 12, titan3A288876