PORTER-CABLE COIL350 Round Head 1-1/2-Inch to 3-1/2-Inch Coil Framing Nailer with Magnesium Housing Drives standard 15 degree wire-collated coil framing nails from 1-1/2-inch to 3-1/2-inch by .099-inch to .131-inch dia Lightweight magnesium housing Powerful, high-performance motor with tool-free adjustable exhaust Refined feed mechanism includes double cams and guides and quick-adjust support for all nail lengths Depth-of-drive adjustment for proper setting of nail heads; Selectable trigger - restrictive or contact actuation mode