Step drill drilling range 6–37 mm HSS spiral-grooved no. of cutters 2 no. of ste8Y055875
Step drill drilling range 6–37 mm HSS-Co5 spiral-slotted no. of cutters 2 no. of4T159966
Step drill drilling range 5–28 mm HSS spiral-grooved no. of cutters 2 no. of ste8J277360
Step drill drilling range 4–20 mm HSS spiral-grooved no. of cutters 2 no. of ste5F400340
Ruko Step drill HSS, CBN ground,spiral fluted with split point, short design6Y333291
Step drill drilling range 4–30 mm HSS spiral-grooved no. of cutters 2 no. of ste6E780122
Ruko ULTIMATECUT Multidrill HSS RUnaTEC, spiral fluted with turbo tip S18P447356
Ruko Step drill HSS, spiral fluted with split pointF6315.000.001
Ruko Step drill HSS, spiral fluted with split pointF6315.000.002
Ruko Step drill HSS, spiral fluted with split pointF6315.000.009
Ruko Step drill HSS, spiral fluted with split pointF6315.006.008
Step drill drilling range 6.5–40.5 mm HSS spiral-grooved no. of cutters 2 no. of2I680969
Ruko Step drill HSS, CBN ground,spiral fluted with split point, short design0K952419
Step drill drilling range 6–38 mm HSS spiral-grooved no. of cutters 2 no. of ste7U316845
Step drill drilling range 4–39 mm HSS spiral-grooved no. of cutters 2 no. of ste2Z860697
Ruko ULTIMATECUT step drill HSS RUnaTEC with FLOWSTEP® No.11F652008
Ruko Step drill HSS, spiral fluted with split pointF6315.000.006