The Model 50P FLEX Power Roller is the professional's choice. This Pneumatic tongue and groove floor nailer is built to exacting standards. From its cast aluminum body, anodized aircraft aluminum internal parts, specialized U-cup seals, to the best warranty in business, this is the professional's first choice. This nailer rolls across the flooring increasing speed of installation, while greatly reducing fatigue. The urethane covered precision bearings make it ideal for use on pre-finished as well as unfinished flooring. The 50P FLEX Power Roller shoots 18-Gauge, L-shaped Powercleats uniquely designed by POWERNAIL to reduce cracking and splitting. Available in sizes from 1-1/4 in., 1-1/2 in., 1-3/4 in. in length. This Pneumatic is equipped with a special safety trigger, is mallet actuated and works from 80 to 110 PSI. The floor thickness can be measured in inches or millimeters. The FLEX unit easily adjusts from 3/8 in. (9.5 mm) to 3/4 in. (19 mm) without using shims or pads. It is the perfect nailer for installing vertical and horizontal bamboo, Brazilian teak, cherry and other similar wood species. The POWERNAIL package includes: 1 white rubber capped mallet, extra driving blade, 2 Allen wrenches and owner's manual.