The bosch expert sds max 8x dust extraction drill bit in 22mm diameter with a 650mm length offers a practical step up for chemical anchor applications requiring a slightly wider hole, all while keeping dust extraction built directly into the drilling process. Delivering up to 25x better dust reduction compared to a standard bosch expert sds max-8x drill bit, this 22mm variant eliminates the need for blow-out pumps, brushes, and vacuum clean-up between operations. The sds clean max connector fits all sds clean max-8x drill bits and is straightforward to attach and remove, while the extractor pipe can be detached quickly if the bit becomes clogged. Features and benefits: up to 25x better dust reduction than a standard bosch expert sds max-8x drill bit advanced dust reduction drilling in reinforced concrete bosch particle control channels dust from the working surface into the extraction system full carbide 4-cutter head drills through reinforced concrete and rebars special welding process creates a highly resistant flute-to-carbide tip connection compatible with all sds max rotary hammers specifications: diameter: 22mm length: 650mm contents: set description: includes: one sds clean max-8x drill bit 22 x 400 x 650 and an sds max connector