Hitachi 28mm (1-1/8") Rotary Hammer : DH28PD

The dust box is easy to remove from the dust collection unit, empty and clean.
The maximum capacity of a dust box: Approximately 130 holes in concrete at drill diameter of 6mm and depth of 28mm.

28mm (1-1/8") Rotary Hammer : DH28PD
URL : http://www.hitachi-koki.com/powertools/products/demolish/dh28pd/dh28pd.html