The Mode 445FS Flex Power Roller is the professional's choice. This POWERNAIL pneumatic tongue and groove floor stapler 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 stapler 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 445 Flex Power Roller floor stapler shoots 15.5-Gauge Power Staples. Available in sizes from 1-1/2 in., 1-3/4 in., 2 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 5/8 in. (16 mm) to 3/4 in. (19 mm) without using shims or pads. It is the perfect stapler for installing oak, maple, ash, pine and other similar wood species. The POWERNAIL package includes: 1 white rubber capped mallet, maintenance tools and owner's manual