Voltage: 20V Fastener length range: 19 - 40 mm( 3/4 ''-1-5/8'') Applications: Fastening cables and conduits to concrete C60 and steel 6mm (max. nail length 27mm) Brushless motor Include: 1000 Pcs nails (27mm) 1pcs air nozzle 1pcs pin Packed by carrying case