The Bosch Speed Clean™ bit connected to vacuum system saves time versus the standard hand cleaning method. A proprietary Bosch design removes material through the center of the bit and offers 25 percent greater drilling speed. The Bosch Speed Clean™ bit delivers 2X life versus the previous Bosch bit for this application and results in more holes within specification. A vacuum connector is provided with every Bosch Speed Clean™ bit. The Bosch Speed Clean™ bit produces less friction on the bit; less dust means less friction.