3DUBEH010060S03

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Powerful drills for hardened steels(HRc52~65) and heat-treated steels. Longer tool life HR coating which provides excellent heat resistance and wear resistance. Point thinning was applied to minimize chipping. With an optimal flute design and 90 and 140-degree point angle, the tool's performance is maximized. Implements stable drilling with a flute groove design considering chip evacuation and drill rigidity. Show more