Chuck: SDS plus Accessories: two batteries, one charge, 5Ah battery; Rated speed (rpm) : 0-1800; Metal maximum drilling diameter (mm) : 13; Optional application range of concrete with electric hammer drill (mm) : 6-10; Product type: four pit hammer drill; Maximum borehole diameter in wood (mm) : 30; Concrete drilling diameter (mm) when equipped with electric hammer drill bit: 4-20; Impact rate at rated speed (bpm) : 0-5100; Battery voltage: 18V; Single hammer force (J) : 2; Weight (kg) : 2.3;