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Technical Info for High Speed Steel Cobalt (HSS-Co 5)
RUKO high-performance split point step drill bits cut fast, clean holes in up to 0.16 inch (8 ga) material. With CBN-ground flutes for a superior cutting edge, these Imperial-size HSSE-Co5 step drill bits cut many metals and plastics, and are the best choice for stainless steels. Step sizes up to 1-1/8 inch are available.