DEWALT DCH253M2 cordless cordless hammer drill, 18 V , 2.1 J 4 Ah, 2 batteriesIdeal for doweling concrete and masonry up to 24 mm, chiseling and drilling wood and metal. Supplied as a kit with 2 batteries 4.0 Ah XR Lithium, side handle, battery charger, carrying case.Electronic speed control allows you to start drilling at a low RPM to avoid damaging delicate materials