Heller Tools 21239 7 HSS Metal twist drill bit 8 mm Total length 117 mm cobalt DIN 338 Cylinder shank 1 pc(s)

A high‑performance cobalt twist drill bit measures 8 mm in diameter and 117 mm long, featuring a hardened HSS‑Co core for exceptional wear resistance and precision cutting in metal alloys. The DIN 338 RN shank offers secure mounting on standard drill systems, while the sharp spiral flute design ensures efficient chip evacuation and smooth drilling through stainless steel and other tough materials.

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