An extra-tough job demands tools that won't give up. That's why these Fuller Tool PRO drill bits with their titanium nitride coating should be your first choice whatever the task at hand. The titanium provides improved wear resistance, which means easier drilling and longer life – up to six times longer than regular high-speed-steel (HSS) bits. What's more, the large flute chambers were designed to prevent clogging no matter the drilling surface. Engineered with a 135-degree split-point tip, few other drill bits offer the same "bite" and penetrating performance.