RUKO HSS Step Drill With Spiral Flute Size 4

This is a high-quality size RUKO HSS step drill for diameters: 6 - 9 - 11.4 (PG7) - 14 (PG9) - 17.25 (PG11) - 19 (PG13.5) - 21.25 (PG16) and 26.75 (PG21) mm.

Pros:

• Right hand cut
• Suitable for steel, cast steel alloys and non-alloys, cast iron, sintered iron, nickel silver, graphite, short cutting aluminum alloys, bronze and plastic, thanks to the HSS cutting material
• Thanks to the sharp drill tip, it is possible to cut holes even in thin-walled materials without pre-drilling
• The next largest step can be used for deburring the boreholes