The NR83A5 full round head framing nailer with depth adjustment is used for floor and wall framing, truss build-up, window build-up, construction of subflooring and roof decking, wall sheathing and mobile home and modular home construction. The NR83A5 is like the original NR83A that you have come to trust, but now with an improved trigger design and sharing all the same internal parts as the original NR83A.The NR83A5 relies on the same cylinder valve drive system as the NR83A, which offers both rapid response and great driving power. Selective Actuation (Sequential/Contact). Open nose for ease of clearing jams. Rafter hook and 2-piece magazine included. Tool-less depth adjustment for easy depth of drive setting. Rubber grip for comfortable handling. Hardened claw tip resists wear on t he nose and minimizes slippage. Fastener Specifications: Full round-head nails, 21 degree plastic strip collation, Diameter 0.113 inches - 0.131 inches, Length 2 inches - 3-1/4". Operating Air Pressure: 70-120 PSI. Nail Capacity: of 64 nails. Top loading. Dimensions: 21- 13/16" x 4-1/4" x 13-3/8". Includes: Safety Glasses.