Bosch HCD509 1 1/2in x 16in x 24in SDS Max Speed Clean Dust Extraction Bit

OVERVIEW: 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...