The Makita 3-1/2" Framing Nailer, 21� Full Round Head (model AN924) combines durable construction and robust performance with ease-of-use features. It is ideal for framers, roofers, and carpenters in commercial framing applications. The AN924 drives 21� plastic collated framing nails from 2" to 3-1/2" in length and .113 to .148 in diameter. It features a solid top-loading aluminum magazine for longer life, a "tool-less" depth adjustment engineered for more precise flush and countersink nailing, and a 2-mode selector switch allows operator to select contact or sequential nailing options.