Features: Single or contact firing, Safety contact tip, Batteries and Chargers are available separately. D20 interchangeable battery system allows you to combine one battery with any of the tools within the D20 series. D20 interchangeable battery system allows you to combine one battery with any of the tools within the D20 series. 1 x D20 20V Nailer/Stapler Battery:D20 20V Li-ion, Firing Rate:60 per min, Nail Gauge:18, Nail Length:20-50, Staples:Type 90, Staple Length:19-40, Magazine Capacity:100, Batteries Per Item:Sold separately, Charger Type:Sold separately, Supplied in Case:No, Weight (bare tool):2.66kg