The 21-Degree 3-1/4" Plastic Collated Round Head Framing Nailer (With Depth Adjustment) (NR83A5M) from Metabo HPT is a throwback to the dependable Hitachi framing nailer from the 1980's. It features the same internal cylinder drive system as the first-generation Hitachi framing nailer with an improved trigger design. The selectable trigger switch allows the operator to quickly change between contact and single sequential actuation mode. Built to offer both rapid response and some serious driving power, this Round Head Framing Nailer is capable of driving plastic collated strip nails from 2" to 3-1/4" in length into the toughest materials. The hardened claw tip and two piece steel magazine add durability, while the open nose design provides easy jam removal during operation.