Core set Ruko
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Ruko
A robust hollow core drill bit with a cobalt‑alloyed HSS tip and Weldon shank, delivering precise 35 mm diameter holes up to 30 mm deep for metal or composite drilling.
High‑performance HSS core drill bit with a 3/4” Weldon shank, 40 mm diameter and 63 mm length. CBN‑ground tip provides bright finish and precise cutting depth up to 30 mm for reliable drilling in metal applications.































