Milwaukee® M18 FUEL™ cordless Duplex Nailer revolutionizes the assembly of concrete formwork by increasing productivity and optimizing ergonomics. By leveraging the nitrogen air spring technology, a POWERSTATE Brushless motor, and REDLINK Intelligence, this nailer delivers the performance to seat nails into all wooden formwork materials at firing rates of up to 4 nails per second. This nailer provides a 7X Increase in productivity and a drastic reduction in muscle effort compared to driving nails with a hammer. It is equipped with user-driven features including tool-free jam clearance and depth of drive adjustment to minimize downtime on the job. Is capatible with the Collated Duplex Nails (sold separately) available in two sizes: 8D (2-1/4" drivable length) & 16D (3" drivable length). When paired with the M18 REDLITHIUM 5.0AH Battery pack, this nailer gives users the ability to sink up to 800 nails per charge.