The FN81T1 delivers the power and durability demanded by professional contractors for all-day performance on the toughest jobsites. It drives a wide range of plastic collated nails from .113" to .148" in diameter, and 2"- 3-½" in length. Upgraded features include, an ergonomic design, an in-line magazine for clear line of sight and a tool-free depth of drive for quick adjustments.