SpeedXtreme SDS Max Rotary Hammer Drill Bit - 5/8in x 16in x 21in

Bosch SpeedXtreme SDS-Max drill bits deliver 100% carbide heads with four-cutter design, making them the toughest, long-lasting bits for drilling in reinforced concrete and hard aggregate.  The bits provide 5X life vs. competition.  The bits are engineered using proprietary diffustion-bonding technology, which bonds carbide and steel at a molecular level.  It's a precise high-heat, high=pressure solid-state welding process that produces jobsite-proven bits.  Bosch is the only concrete bit manufacturer to make its own carbide, and 100% quality check on each and every single bit.  The bit has a four-cutter design with 180° cutting diameter and 100% power transfer during drilling.  The active-centering tip results in a rounder hole, while the four 90° side angles create a wide and sharp head to keep driving precise holes.  The four-flute design aggressively pulls dust away from the work, for fast drilling and longer bit life.