PowRyte 21&deg; Round Head Air Framing Nailer - 2 inch to 3 1/2 inch by .113 to .148 Shank Large capacity air chamber for increased power to drive nails varying in length from 2 inch to 3- 1/2 inch Tool-Free Depth of Drive Adjustment designed for precise sinking of fasteners Hardened claw tip reduces wear on the nose and minimizes slippage when toe-nailing Dry-fire lockout feature extends motor life and prevents missing nails Operating Pressure: 70-120 PSI; Nails Length: 2-inch to 3-1/2-inch, 0.113 to 0.148-inches diameter PowRyte maximize your saving by delivering quality tools PowRyte Elite provide ingenious, innovative, and ergonomically-designed products that suits frequent users