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.