HSS step drill bits helix-fluted with split point
With these robust drill bits, metal sheets can be centered, pilot-drilled, drilled open and deburred, all in one operation. The CBN ground and spiral-shaped flute provides absolute quiet running and high cutting performance. Especially non-breaking chips will be removed easily like with a twist drill. This reduces the formation of build-up edges and cold weld marks on the cutting edges. The cone makes it easier to withdraw the tool from the drilled-through metal sheets.
They can be used for stainless steel sheet, steel sheet, cast iron, thermoplastics and thermosetting plastics.
