Industrial grade design for high speed and high volume framing applications. Recoil dampening engine system to minimize recoil. Adjustable rafter hook. Lightweight at only 8 lbs. With enhanced ergonomics and balance for comfort and control. Tool free features depth-of-drive adjustment for precise setting of fasteners and selectable trigger for bump or sequential actuation mode. Fastener diameter range .113 to .148". magazine capacity of 50 nails. Operating pressure 70-120 psi. Over mold grip.