Bosch Speed Clean™ is a hollow drill bit designed to be used with a vacuum system for dust-free concrete drilling. Speed Clean is manufactured using a solid piece of steel with a dust channel milled to Bosch specifications to extract dust while drilling, creating 25 percent faster drilling speed than a standard drill bit. The dust-extraction bit system saves time, saves money and reduces silica dust by 90%. Solid carbide tips are embedded in a steel head with robust four-cutter geometry enhancing bit speed and life. The Speed Clean™ bit, connected to vacuum system, installs anchors up to 50% faster when compared with the standard drill-blow-brush-blow anchor installation method. A proprietary Bosch design allows dust and debris to be removed through the milled center of the bit. A replaceable rubber vacuum adapter is assembled with every Bosch Speed Clean™ bit. Speed Clean™ is a part of the Bosch dust-collection system that helps you become compliant with OSHA silica dust regulations.