- Rectified four-sided hard metal tip; - Super deep double groove; - Reduced groove; - Vanadium chrome steel body; - The coolant should always be used.
- EXTREME 2™ Metal tip starts drilling on contact eliminating walking for clean, accurate holes (diameters 4.8mm and above only). - Innovative tapered web greatly reduces breakage. - No-slip shank with 3 flats eliminates slipping in the chuck (diameters 5.0mm and above only).
- The 8% cobalt content maintains a sharper cutting edge and delivers a 4X longer life versus DeWalt Black Oxide bits. - The optimised tip and flute geometry delivers 2X the penetration speed, versus DeWalt Black Oxide bits, removes material faster and reduces heat build up. - The stronger central core delivers 2X the resistance to breakage versus DeWalt Black Oxide drill bits.