Core drilling machine for drills up to 225 mm in diameter The handy core drilling machine MSW-DDM255G28 from MSW reliably drill holes in hard construction materials such as concrete, masonry or asphalt with the help of diamond core bits. It can also successfully drill large-calibre holes up to 225 mm in diameter. The integrated residual current protection circuit provides protection for both the user and the core drilling machine. Powerful—high-performance 2,800 W motor Precise—core drilling up to a diameter of 225 mm Effective—speeds of up to 920 rpm Variable—for dry and wet drilling Safe—residual current protection circuit integrated in the cable