Operating with through-coolant or without, B55_DAL drills CFRP-metal stacks in hole diameters of 3/16–5/8 in. Double-angle point design provides optimized centering, while sharp edge cleanly cuts composite fiber-reinforced polymers in top layer and exits titanium or aluminum side without burrs. For optimized chip evacuation, fine-grain solid-carbide Beyond™ KN15™ grade is highly polished. Drill can be applied in all combinations of stacks: CFRP-Ti-Al, CFRP-Ti, CFRP-Al, and straight Ti or Al.
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