Ideal for dust free drilling up to 52mm in diameter and unlimited depthCompatible with all professional dust extractorsDurable rubber seal allows for adhesion to most masonry surfacesInterchangeable drilling heads for optimum dust removalFlexible hose allows for 360 degree vertical and horizontal orientationIncludes hole cleaning nozzles to expose the full drilled depth and to ensure maximum adhesion of anchor fixingsSpecificationsCollar Diameter 0-38 & 38-52 mmMax. Drill Bit Diameter 52 mmHose Length 90 mmHose Diameter 44 mm